I removed my swim trunks while swimming in the public pool
Why would you take off your clothes in public like that?
What do you care? I just want to do something new.
You can't just take your clothes off in public places. If you want to try something new then you should try a new hobby or something. Not this.
I have a right to show my body shape to everybody, so what's wrong with it?
It's okay to be revealing in public, but you should still cover your private parts, and being naked is actually illegal, and you can end up in jail if you continue doing so. You should try and pose for modeling careers if you really like to showcase your body in front of people, that way you're going to have a job you like and you will be paid for it, and you're doing something that's legal.