Sorry for hijacking, but I wasn't sure where best to put this...
Glad you want to get involved! This would be more suited for its own thread on tor-dev@ but that said, my top suggestion is: pick something that interests you. Enjoying your involvement with open source and, by extension, sticking around to become a long term contributor is more important than any particular task. :)
Some good spots to get started are...
* Summary of our projects and points of contact: https://www.torproject.org/getinvolved/volunteer.html.en#Projects * Fun way to learn more about tor: https://media.torproject.org/video/
Cheers! -Damian