A New Look for Me

Do you think the guy in the picture is on steroids? I would guess he is, to the point of his testicles being about the size of a hamster's.
Anyhow, the inspiration for this post is because I'm thinking about joining a gym. My coworkers all got on the healthy bandwagon for the new year and joined Curves. I guess the male counterpart is located right next door, and they want me to join that one. I realize that if I were to join a gym, this would probably be the most ideal situation, I'd be motivated by my coworkers to go since they'll be stopping right next door. A little confidence in what I look like, after I start to develop some muscle tone, wouldn't hurt any because Lord knows I need that. There are drawbacks though.
First, I would have to go through monthly measurements to track my progress. I'm very well aware that I'm underweight. I don't really need someone to measure my waist and arms so they can tell me that. Also, I'm not comfortable lifting weights in front of other people. I don't want them to see how weak I am.