How to choose a mentor on drupal.org

Question

Sorry for the off topic question, it may seem in wrong direction as it is not relevant to coding and other stuff.

The problem is that I am developing a module called Amazon send to kindle. It is right now in sandbox module. I am getting problem, as i am not able to share on amazon kindle.

I need a guidance from some expert users, to help and guide me in the development. Drupal.org allows us to select the mentors, but i don't know how should i approch other user to be my mentor.

Is there any official way to ask users to be my mentor ?