1. What’s up? – Hey; what are you doing?
2. I feel you – I understand and empathize with you.
3. I get it – I understand.
4. Same here – I agree.
5. My bad – My mistake.
6. Oh my God!
7. You bet – Certainly
8. No worries – That’s alright
9. No biggie – It’s not a problem.
10. No big deal – It’s not a problem.