1. “I don’t mean to brag, but …”
2. “I already knew that ...” (or “Doesn’t everyone know that?”)
3. “I’m pretty sure that …”
4. “No offense, but ….”
5. Overusing “I” (or “me)
6. “Oh, I’m just kidding!”
7. “You probably don’t know this, but …”
8. “I’m surprised you’re having problems with this. It’s so easy!”
9. “You just don’t get it.”
10. “If I were you, I’d ….”