Bismillah

So from the Etiquettes of eating are :

Eating with the right hand. It is obligatory for the Muslim to eat with his right hand; he should not eat with his left hand.
It was narrated from Ibn ‘Umar that the Prophet (peace and blessings of Allaah be upon him) said: “No one among you should eat with his left hand, or drink with it, for the Shaytaan eats with his left hand and drinks with it.”


It is Sunnah for a person to eat from the food that is directly in front of him, because the Prophet (peace and blessings of Allaah be upon him) said to ‘Umar ibn Abi Salamah, “O young boy, say Bismillaah, eat with your right hand, and eat from what is directly in front of you.”

Ibn ‘Abbaas narrated that the Prophet (peace and blessings of Allaah be upon him) said: “The blessing descends in the middle of the food, so eat from the edges and do not eat from the middle.”


Not reclining whilst eating. That is because the Prophet (peace and blessings of Allaah be upon him) said: “I do not eat whilst I am reclining.”


Not criticizing the food. Abu Hurayrah (may Allaah be pleased with him) narrated that the Prophet (peace and blessings of Allaah be upon him) never criticized any food. If he liked it he would eat it and if he did not like it he would leave it.


Praising Allaah after finishing eating. There is a great deal of virtue in this. It was narrated from Anas ibn Maalik that the Messenger of Allaah (peace and blessings of Allaah be upon him) said: “Allaah is pleased with His slave when he eats something and praises Him for it, or drinks something and praises Him for it.”


Eating a piece of food that falls on the floor. If a piece of food falls on the floor, then the person eating should remove any dirt that gets onto it and eat it; he should not leave it for the Shaytaan, because he does not know where the blessing is in his food; it may be in the piece that fell, and leaving it makes a person miss out on the blessing of the food. Anas ibn Maalik narrated that when the Messenger of Allaah (peace and blessings of Allaah be upon him) ate, he would lick his three fingers. Anas said: “And he said, ‘If any one of you drops a piece of food, let him remove any dirt from it and eat it, and not leave it for the Shaytaan.’ And he commanded us to clean the plate, and said, ‘For you do not know where in your food the blessing is.’


Ok so next Question is !! :

Mention some Hadeeth in which Rasulullah forbids us from being Selfish