table manners 
plural noun
Behaviour that is conventionally required while eating at table: table manners are a relatively recent invention his table manners were not as nice as they should have been...
- Social behaviour, table manners and etiquette are being taught by teachers from catering colleges in the city.
- So, I find myself very well rehearsed in the fine arts of etiquette, including table manners, polite conversation and flattery.
- The course comprises basic communication skills, group discussion, public speaking, body language, etiquette, and table manners.