Turning up late:
Not being presentable:
Don't ask uncomfortable questions:
Lacking attention:
Digging into the past:
Do not get drunk:
Not contributing to the conversation:
Not observing table manners:
I do not mean go berserk and observe Royal house level cutlery etiquettes. All I mean is just observe the usual table manners of sitting properly, using the cutlery, not making eating sounds, etc.