kinda new

I have been to the Creek about 10 times, last Tuesday there were only a few of us down there, very relaxing. There was a younger couple which I had talked to on the way down. There was a couple of guys and a kid that we obviously offended by being clothes free, they were not, they left. I walked over to the young couple to ask if they got the same impression, then they got offended? Was I wrong to talk to them?