On a whole, I don't like people looking at a picture while I draw. Sometimes I don't even like people seeing the wip until it's done.
It's strange though, if I'm at a convention or if it's children then I don't mind nearly as much. But my poor boyfriend at home if he tries to glance I get all bristlely. I have no clue why! It's not like he'd ever say anything bad about my art anyway. Coloring I also don't mind people watching!