Table manners are important to me everywhere I go. It shows that you have proper home training and it's part of polite elliquite.
I don't usually put my elbow on the table while eating nor eat while talking. I excuse myself by reaching the food where is far from where I'm sitting.
But sadly sometimes I still bang my utensils on the plate loudly and slurp soda out of a cup even if I didn't mean to(nor not trying to do it). I tried to stop but it can be annoying to others, even that they warn me many times.