Teaching formal manners as part of pledging/new membership?

[DeltaBetaBaby]

Originally Posted by MysticCat

But even the rules that can seem arbitrary can matter -- where you put the napkin when you get up from the table can be a signal to servers as to whether you're coming back. (In your chair means you're coming back; loosely folded to the left of your plate means you are not.)

This is actually debated among etiquette experts, so the best way to convey something to your server is to speak to them (or more precisely, they should ask you).