This message has been reproduced directly from ‘Islam_True’ Newsgroup
1. Praying for someone who does good to you
Praying for the one who treats you kindly by saying “Jazak Allaahu khayran”
It was narrated that Usaamah ibn Zayd (may Allaah be pleased with him) said: The Messenger of Allaah (peace be upon him) said:
“Whoever has a favour done for him and says to the one who did it, ‘Jazak Allaahu khayran,’ has done enough to thank him.”
2. Shaking hands with the opposite gender
It is not permissible for a man to shake the hands of a non – mahram woman.
Narrated Ma’qal ibn Yassaar (may Allaah be pleased with him) who said: The Messenger of Allaah (peace be upon him) said: “If one of you were to be struck in the head with an iron needle, it would be better for him than if he were to touch a woman he is not allowed to.”
Shaking hands with a non-mahram woman
covered under Major Sins (2 of 3)
It is permissible to drink, however it is better to drink while sitting.Narrated Aboo Hurayrah (may Allaah be pleased with him): Allah’s Messenger (peace be upon him) said: “None of you should drink while standing; and if anyone forgets, he must vomit.”
Narrated Ibn ‘Abbas (may Allaah be pleased with him): “The Prophet (peace be upon him) drank Zam-Zam (water) while standing.”
Narrated An-Nazzal (may Allaah be pleased with him): All came to the gate of the courtyard (of the Mosque) and drank (water) while he was standing and said,
“Some people dislike to drink while standing, but I saw the Prophet (peace be upon him) doing (drinking water) as you have seen me doing now.”
Imam Nawawee (may Allaah have mercy on him) said: “There is no contradiction in these ahaadeeth, praise be to Allaah, and none of them are da’eef (weak). Rather they are all saheeh. The correct view is that the forbidding mentioned in them is to be understood as meaning that it is disliked. The fact that the Prophet (peace and blessings of Allaah be upon him) drank whilst standing indicates that it is permissible to do so. This is all that needs to be said on the matter.”
When someone sneezes, they should praise Allah by saying ‘Alhamdulillah’ (Praise be to Allaah.
If you here someone sneezing and praising Allah, you should ask Allah to bestow His Mercy on them by saying ‘Yarhamukallaah’ (May Allaah bestow His Mercy on you).
If someone says this to you, you should reply, ‘Yahdeekumullaahu wa yuslihu baalakum’ (May Allah give you guidance and improve your condition).
Narrated Aboo Hurayrah (may Allaah be pleased with him): The Prophet (peace be upon him) said,
“If anyone of you sneezes, he should say ‘Al-Hamdulillah’ (Praise be to Allah), and his (Muslim) brother or companion should say to him, ‘Yar-hamuka-l-lah’ (May Allah bestow his Mercy on you). When the latter says ‘Yar-hamuka-llah”, the former should say, ‘Yahdikumul-lah wa Yuslih balakum’ (May Allah give you guidance and improve your condition).”
It is the duty of all muslims to great each other by sayin ‘As-Salaamu ‘alaykum’ (peace be upon you)
Narrated Aboo Hurayrah (may Allaah be pleased with him): The Prophet (peace be upon him) said, “Allah created Adam, making him 60 cubits tall. When He created him, He said to him, ‘Go and greet that group of angels, and listen to their reply, for it will be your greeting (salutation) and the greeting (salutations) of your offspring.’ So, Adam said (to the angels), As-Salamu Alaikum (i.e. Peace be upon you). The angels said, “As-salamu Alaika wa Rahmatu-l-lahi” (i.e. Peace and Allah’s Mercy be upon you). Thus the angels added to Adam’s salutation the expression, ‘Wa Rahmatu-l-lahi,’ Any person who will enter Paradise will resemble Adam (in appearance and figure). People have been decreasing in stature since Adam’s creation.”
6. Eating with the right hand
Muslims should always eat and drink with their right hands only.
Narrated Ibn ‘Umar (may Allaah be pleased with him): Allaah’s Messenger (peace be upon him) as saying: “When any one of you intends to eat (meal), he should eat with his right hand. and when he (intends) to drink he should drink with his right hand, for the Satan eats with his left hand and drinks with his left hand.”
7. Saying Bismillah before eating
It is Sunnah to say ‘Bismillaah’ (In The Name Of Allaah)
Narrated ‘Umar bin Abi Salama (may Allaah be pleased with him): I was a boy under the care of Allah’s Apostle (peace be upon him) and my hand used to go around the dish while I was eating. So Allah’s Apostle (peace be upon him) said to me,
“O boy! Mention the Name of Allah and eat with your right hand, and eat of the dish what is nearer to you.” Since then I have applied those instructions when eating.”
8. What to say after eating: After eating, it is Sunnah to say ‘Alhamdu lillaahi hamdan katheeran tayyiban mubaarakan feehi, ghayra makfiyyin wa laa muwadda’in, wa laa mustaghnan ‘anhu Rabbanaa’ (All praise is to Allah, praise in abundance, good and blessed. It cannot be compensated for, nor can it be left, nor can it be done without, our Lord)
Narrated Aboo Umama (may Allaah be pleased with him): Whenever the dining sheet of the Prophet was taken away (i.e., whenever he finished his meal), he used to say:
“Al-hamdu lillah kathiran taiyiban mubarakan fihi ghaira makfiy wala muwada’ wala mustaghna’anhu Rabbuna.”
9. Respecting Parents
We should always respect our parents.
Allah, the Most High, says in the Qur’aan:
“And your Lord has decreed that you worship none but Him. And that you be dutiful to your parents. If one of them or both of them attain old age in your life, say not to them a word of disrespect, nor shout at them but address them in terms of honour. And lower unto them the wing of submission and humility through mercy, and say: “My Lord! Bestow on them Your Mercy as they did bring me up when I was small.”
Narrated Mu’aawiyah ibn Jaahimah (may Allaah be pleased with him) came to the Messenger of Allaah (peace be upon him) and said: “O Messenger of Allaah, I want to go and fight (in jihad) and I have come to consult you.”
He said, “Do you have a mother?”
He said, “Yes.”
He said, “Stay with her for Paradise is at her feet.”
10. Lying and Cheating
It is not permissible to lie and cheat in Islaam
Narrated ‘Abdullah (may Allaah be pleased with him): The Prophet (peace be upon him) said,
“Truthfulness leads to righteousness, and righteousness leads to Paradise. And a man keeps on telling the truth until he becomes a truthful person. Falsehood leads to Al-Fajur (i.e. wickedness, evil-doing), and Al-Fajur (wickedness) leads to the (Hell) Fire, and a man may keep on telling lies till he is written before Allah, a liar.”
Narrated Samura bin Jundub (may Allaah be pleased with him): The Prophet (peace be upon him) said,
“I saw (in a dream), two men came to me.” Then the Prophet narrated the story (saying), ‘They said, ‘The person, the one whose cheek you saw being torn away (from the mouth to the ear) was a liar and used to tell lies and the people would report those lies on his authority till they spread all over the world. So he will be punished like that till the Day of Resurrection.’”
Narrated Aboo Hurayrah (may Allaah be pleased with him): The Prophet (peace be upon him) happened to pass by a heap of eatables (corn). He thrust his hand in that (heap) and his fingers were moistened. He said to the owner of that heap of eatables (corn):
“What is this?”
He replied: “Messenger of Allah, these have been drenched by rainfall.”
He (peace be upon him) remarked: “Why did you not place this (the drenched part of the heap) over other eatables so that the people could see it? He who deceives is not of me (is not my follower).”
And It is Only Allah Who grants success. May Allah Exalt the mention of His slave and Messenger Muhammad, and render him, his household and companion safe from Evil.
 Here is a list of a few manners I compiled for a class in my local mosque. The children were of Class 4, so these are some basic, yet important, manners. I chose these specific ones because of what i experienced when i was teaching them. Sunan at – Tirmidhi, Number 1958; Classed as Saheeh by Sheikh al-Albaanee in Saheeh Sunan at – Tirmidhi 2/200 and Saheehul-Jami’, Number, 6244; Refer to ‘Fortress of a Muslim’,  A mahram is a man a woman is permitted to uncover in front of, such as her husband, brother, father and all those other males mentioned in Surah An-Noor (24: 31); Refer to http://www.al-ibaanah.com/articles.php?ArtID=65  Reported by At-Tabaraanee, Al-Bayhaqee and others; Classed as authentic by Sheikh al – Albaanee in Silsilat As-Saheehah (1/447-448) and in Saheeh al-Jaami’, Number 5045; Refer to http://www.al-ibaanah.com/articles.php?ArtID=65 and http://www.islamqa.com/index.php?ref=2459&ln=eng  Saheeh Muslim, Book 023, Number 5022  (Agreed Upon); Saheeh Bukhaari, Volume 7, Book 69, Number 521; Saheeh Muslim, Book 023, Number 5023  Saheeh Bukhaari, Volume 7, Book 69, Number 519  Refer to http://www.islamqa.com/index.php?ref=21147&ln=eng  Saheeh Bukhaari, Volume 8, Book 73, Number 243  (Agreed Upon); Saheeh Muslim, Volume 4, Book 55, Number 543; Saheeh Muslim, Book 040, Number 6809  Saheeh Muslim, Book 023, Number 5008  (Agreed Upon); Saheeh Bukhaari, Volume 7, Book 65, Number 288; Saheeh Muslim, Book 023, Number 5012  Saheeh Bukhaari, Volume 7, Book 65, Number 368  The Noble Qur’aan, Soorah Al-Isra 17:23 24  Musnad Ahmad, Number 15577; Shaykh Shu’ayb al-Arna’oot said: its isnaad is hasan. Refer to http://www.islamqa.com/index.php?ref=34176&ln=eng  (Agreed Upon); Saheeh Bukhaari, Volume 8, Book 73, Number 116; Saheeh Muslim, Book 032, Number 6307  Saheeh Bukhaari, Volume 8, Book 73, Number 118  Saheeh Muslim, Book 001, Number 0183