The key is to be yourself, draw interests from other people but you must always still be yourself as you cannot be someone else :) everyone is an expert in their own field too, you may feel like you have nothing to contribute to certain subjects yet others you may have a wealth of information to throw into the discussion, patience and diligence with time will bring you knowledge, keep at the things that you wish to learn :D remember you don't have to feel like you need to force yourself to find a reply to every blog entry, no one here will judge you my friend!