Oh, it's not impossible to do well, just a bit of a red flag that this player may be looking for a different kind of game than me. I guess it's when the player wants to be silent I don't like it. Sometimes you will get someone who wants to play a bodyguard kind of character that just stands by and pretty much does nothing until combat starts. I hate that. Someone doing a lot of body language is engaging with the group and participating in a way that I think would be fun.