Have you ever wanted to tell a complete stranger or an acquaintance how attractive you think they are but didn't?

Nah. The only time I've felt that it happened to be appropriate enough to be able to say it. But I nearly turned my cart around and chased after that man in the grocery store who had that incredible cologne that time but resisted.

...lol i actually tell them.

Yes

Yes. I'm too scared they'll just laugh at me and think I'm like a silly little kid with a crush.