Mac, just make sure that you are browsing people near your age. That will help reduce the chances of negative reactions.

I also disagree when someone else said to not post a picture. I wouldn't reply to someone who didn't have a few photos posted - it's not that I'm really looking at appearances but I want to see that they are real. I don't like it when people are deceptive about themselves and it's really easy to do that online. So if I see a picture on a site of a man that looks like an ordinary man (so not like a model or fitness addict) then I will believe they are being honest about who they are.

And it's fine to enjoy being alone. You can even write in your profile if you are interested in making friends - because yes, people do that (the guy I mentioned earlier has that in his profile!).