What are YOUR annoying habits?

I seem to pick the skin around my fingernails a lot. I don't know why, but I've always done it. It really annoys my flatmate.

I also tend to interrupt people and change the subject when I hear a word or phrase in a conversation that sparks an interest in something else in my head.

Apart from that, I'm great, like.

Tell me about what you do that's annoying.