Perverted Man??

Me : Hey, I called you from outside. Why didn't you respond?
Friend: Oh... It was you who waved and smiled?
Me : Yes... Who did you think was that?
Friend : You have your hair cut, I didn't recognize you. I thought it was a perverted man, smiling at me. I was scared to death, you know. I didn't dare to respond...
Me : Errr...