you can contact GAG and send them the link to your facebook page that you liked them and on Twitter that you followed them that's 200 points right there, then if you also put up your own avatar picture you get points for that too then just ask as many question as you can you can get points for asking questions too and if your question get at least 10 opinions you get points for that too and finally by getting mh you get 10 extra points for that.
You get more points by posting questions than comments, it's 2xper per comment but you only get the xper for your first comment on each question, also when you choose the best answer you get more xper.
I honestly don't pay much attention to the Exper level or username when answering or asking. I pay more attention to the gender and age. Your age will affect how much information I give you, your gender will after how I deliver that information.