I go into compact mode when nude outdoors and stay there. As much as I'd like the concept of bouncing around hard, it's not going to happen. Best I can do is wear some rings to bring up the weight and resulting swing on a smaller scale.
Back in 2020 wed just come out of London and I was keen to get out for some nude socialising. I found a naturist walking group and was invited to join them on a long walk in the countryside. There were about 10 of us, and just two females, but I was the only newcomer. The weather wasnt great but after a couple of miles the walk leader stopped and suggested we get naked. As it was a little cold only 2 of us did with the walk leader. I was enjoying being nude but not at all aroused. After a while the sun came out and the rest of the group finally stripped off. As we continued the walk I was behind one of the women and couldnt stop thinking how cute her bum was. I could feel myself getting a little aroused but all was under control. When we stopped for lunch though she sat opposite me and I couldnt take my eyes off her - I think it was because I was nude with others after so long but I got very excited and my boner popped right up! We finished our lunch and nobody had seemed to notice so I got up to continue the walk and my cock subsided a bit. But after a few minutes walking the whole group stopped to climb a gate. I obviously made sure I was well positioned to get a good eyeful and my boner quickly shot back up. I tried to conceal it but as I climbed the gate I had to reveal myself to everyone. Someone made a little joke about the gate being hard to get over! After that I just continued the walk with a boner coming and going as I walked with the group. It became a bit of fun with people joking about me being a human compass etc. The next time I joined them a month or so later a few of the same people were there again , including the lady whod got me going the previous time. The walk leader did ask me if all of me was going to be better behaved this time!