njerseyguy saidyea, i sweat a shitton but i always have a towel. it's nasty when others don't wipe down the equipment. i don't understand guys who don't sweat at all though.
Everyone is different. My dad and I can be in the same 75 degree room, I'm dry as a bone and his skin is already starting to get damp. I grew up in the tropics and lived in hot climates my entire life and very rarely will I sweat just sitting still. Temps would have to be above 90 with high humidity before I start to sweat. The facility my BF and I train at keeps the weight room at 70 degrees (F) constantly and after 45 minutes of heavy lifting he's sweating like a pig, soaked through a towel and I'm pumped, my heart rate is elevated and I'm relatively dry compared to him.
I don't care if someone is sweaty or not at the gym so long as they wipe down the equipment and they don't smell like a yetti.
Fit sweaty guy gets a thumbs up in terms of attractiveness.