It looks like it might be a scar from a cut or something. I don't think it is a stretch mark though.
If this is just a general question, you could use, I an smart, I am not stupid, or I am funny, I am not serious, or for a third, you could use, I am creative, not boring!
Its a suffix cuz of ology
Answer:
I enjoy suffling in part of dance because it ia fun to do it.
