I repeat things often! I haven't noticed any sort of pattern like the others, there don't seem to be any particular letters/phrases etc, and it doesn't seem to happen only when I'm anxious. It's just something I've always done since my childhood and it's never stopped, I've just gotten better at doing it more quietly so people don't always hear me.

Sometimes I just like the way a word sounds I guess and it'll get stuck in my head and I feel like I need to keep saying it over and over again because it just feels right.

There are times where I'll be having a face to face (well, in person, not so much face to face) conversation with somebody and I'll get hooked on a word or phrase they've said. It takes a lot of effort not to just start blurting it out whilst they're still talking, and I don't always succeed.