What do they do to the new guys?

I'm 15, 5'11" and 153lbs.

When I join for the first time what am I going to do?

I'm always curious about this and a little baffled. When people ask this question, which they do a lot, why do they post their height and weight? Why do you do that? Do you think the answer is going to change depending on your weight and height?

Expect boxing with kicking allowed.

What do they do to the new guys?

I'm 15, 5'11" and 153lbs.

When I join for the first time what am I going to do?