Public place?

I always wanted to try something in public sneakily but never got a chance nor the opportunity like in public washroom or park, in car at scheduled place or movie theatre haha this thought always intrigues me. Also i have done it in classroom and library also in bus that's the best time i ever had... and wanna explore some more places that are in my list😬.

Just curious 😁 What's the one thing you always wanted to try but you haven't done it yet?