I'm usually really shy, but being tickled in public is actually kind of a thrill for me. I have a weird thing where normally I hate being teased or messed with, but if it's from someone who I know doesn't mean harm, like close friends or family, I actually really enjoy the feeling of getting blushy and embarassed. The same thing goes for tickling, if it's in private, or in public but with close friends, it's great, but I get too overwhelmed if it's in front of people I don't know, even if they happened to be someone who liked tickling.