It’s not a dating site, so posting a nice picture isn’t enough to cut it. Introduce yourself on your profile. Give other members an idea of what types of friends you are looking for.
Don’t say, “ask me to find out” in your About Me section, use it instead to introduce yourself and say what kind of friends you are looking for. The more complete and filled out your profile is, the more success you will have with being approached by potential new friends.