When I knew they had talked about me
I'm more selective about public tickling these days but for years I tickled girls any chance I got no matter who was watching. So anyone who observed me in action enough times and could recognize the obvious knew I am not a casual tickler.
Almost every one of my friends? Probably not. But your question makes me think of a time when I realized a few people must have talked about my tickling antics. I was in college and at a party got a friend named Noreen where I wanted her, tickling her until she screamed to make me stop. She was mad!
In class a couple of days later a mutual friend, Gail, walked past me and from behind tickled me a couple of times, straight-faced, tight-lipped, and without saying a word. I said nothing, in part because she did nothing for me so I was not interested in tickling her. But I figured it was no coincidence that Gail had chosen to tickle me then, after knowing me for more than two years. Noreen must have told her about it.
I've always hoped the girls I've tickled would tell their female friends, resulting in one who'd seek me out for tickle play. Of course, being into tickling is one thing, wanting me to tickle them is another.