The Saturday before Memorial day, I activated North Mountain (W7A/AW-060). On the way up the mountain, I noticed a young man hopping around and making weird noises. Didn’t take much notice until I got to the summit and was making contacts on 2 meters. I had put on Sota Watch that I was going to operate on 30 meters as well but as I was setting up my HF antenna, I noticed this same young man imitating me. Someone on the radio asked to the summit designation and I gave it to the phonetically and the young man starting copying what I was saying while hopping from rock to rock on the summit. It kind of creeped me out as he kept doing this so I abandoned my setting up, packed everything up, and headed back down the mountain. I usually get between 3 to 6 contacts on 30 meters and I’m wondering if I didn’t anything wrong by not changing my alert to let them know. I know I didn’t do anything illegal but wanted to make sure that I didn’t do anything that would be considered “bad form.” Thanks in advance for teaching this new guy the ropes.