I took the time to read all your replies I didn´t expect them to be so many!
I find some posts really helpful. To make this clear: I go to the gym primarily to work out and I do it seriously since I started a year ago. Now, this is not the first time I notice a guy hot and its not that I´m in love with this one. I just found him hot and yes, I would never go to him, put myself In evidence and tell him to go to the sauna and jerk of each other. I just was asking for ideas about how could I start a conversation/intercact with him and I think asking about how a machine operates or about a particular routine sounds good. I think the gym, as some other places, are good places to meet people as long you dont bother anyone. There´s people to happen dont understand this. I made some friends at my gym mostly because they started a conversation with me, asking about a routine, telling me how good my psique was, etc. But yeah, there were also. people I found anoying because they were imprudent, talking to me while I was lifting and some gay guys were the worse, asking me for a drink, go to party even making myself clear about not being interested on them. (if Í´d found them hot of course I´d have acepted their invitations)