Saying bismillah (in the name of ALLAH) before meals
Amr bin Salma (Radi Allaahu Ta’ala Anhu) once came to the Holy Prophet (Sallallahu Alaihi Wa Sallam) when meals had just been served to him. The Prophet said, “Come closer, son, and saying Bismillah (in the name of ALLA.AH) commence eating with the right hand from before you.” [Shama’il-e-Tarmizi]
There is unanimous agreement (amongst the theologians) that saying Bismillah before taking a meal is a Sunnah but eating food with the right hand is a Sunnah according to majority of them while some of them hold it to be a wajib (obligatory). It has been commissioned by the Holy Prophet (Sallallahu Alaihi Wa Sallam) that one should eat and drink with his right hand for Satan eats and drinks with the left hand. [Khasail-e-Nabawi]