When you sit for hours at parties hoping somebody'll ask you what a joint-controlled morph is.

!!!!!When you put exclamation marks at the start of sentences

When you're looking for a lost address book and think, "I'll ask Acadia".

When you break out in hives and think, "that's a great shader".

When you start a new relationship and you think "I wonder if they've fixed multiple undo yet?"

When your girlfriend sits down in a short skirt and you think "how'd they rig her hips?".

Instead of turning to look at someone, you move your hand to where the trackball should be.