basically my problem is stated in the title.

Whenever I drop my pencil, eraser, paper (whatever it is) and I look like I'm about to cry. My lips quiver and people notice this too. I don't know why I do this... Does anybody else do this? It makes me seem so dumb....

Edit: and it's not like I'm actually going to cry. There are no tears. I kinda just 'automatically' do this.