-um-, pa-, mag-/si-, mag--redup
To sit down face to face with s.o.
If s.o. comes to your house, it's rude if we sit down face to face with them.
Hey there's your friends arriving. Sit down with them (face to face).
If you're sitting down face to face eating with people, don't reach way across (the table to get s.t.), but rather have s.o. pass whatever you want.