Why do I do this?

Because you're afraid. Don't be.

Look straight at that face and say to the person in the mirror: "Hey, you're a pretty neat person".

Am I the only one who looks at my teeth in the mirror while I brush them?

I read while brushing my teeth. It's not like there's something interesting to look at.

I just kind of meander around the room

I'm confused, why don't you look in the mirror while brushing? Do you look in the mirror while combing your hair? Or do you do everything blindly?