Why don't you ask your close friends and collegues? There are a lot of apps that help you do exactly that if you find it awkward to ask them directly. There is this one app that I find particularly interesting. It is called emplido and it lets you rate friends, rate as in their strengths and lets them do the same. It helps you find out what your friends think of you and boosts your confidence. I have tried it and it worked on me. May be you should give it a try as well? You can find it here: https://apps.facebook.com/emplido/