my trouble have only been with the police. Why? I don't look suspicious. I look like Fred Savage meets Frodo Baggins.

I've been asked for my bike registration several times, both in broad daylight. Both times they also insisted on seeing my alien registration card. I've also been randomly stopped by the police for no apparent reason. Once, on late night walk I was stopped at an ice cream vending machine. They asked, "What are you doing?"
"Eating ice cream."
"What's your destination?"
"No where particular."

They looked kinda disappointed with me...

However, I've never been harassed or treated badly. Considering the kind of racial profiling that goes on in the states, this is nothing.