Being shy or an introvert is something you have to work on. Both of us were shy in our earlier years. The Mrs is still some what of an introvert. The LS has changed that. She has come out of her shell, and is not really shy anymore. In fact she flirts with strangers just as much as I do. In the summer we hang out at vanilla bars a lot. If a cute guy just happens to start a chat, or a sensual look, she lights up, and the game is on.
The LS is a lot like dating all over again. But now its 2 on 2. Although, we are open to singles as well.
If you cannot make the first move, you need to be noticed, so that they make the first move. The first thing you need to do is wear something that gets attention. This is where the ladies have it all over the guys. Show off your cleavage, your butt, your curves. Any woman can be sexy. Just show off YOUR sexy. Be ready to engage in conversation when someone approaches you. OP, you have a great default pic. SMILE, if you have "standing bitch face", you need to work on that. If your appearance is not welcoming, you will not get a lot of callers. Small compliments go a long way. Over time, this will be less and less work. When a couple says, "OMG, you guys are a lot of fun!!!!" you know you are doing something right.
Hope this helps.