make high rank , then joint signature campaign, or sell items to replaced bitcoin,
So.. Here is a free guide to start off

 1. Get a Bitcointalk.org account that is either Full Member, Senior Member or Hero Member.
 (The higher the better)
 2. Sign up for a signature campaign. (And get accepted)
 3. Start getting paid 0.0013 BTC per post on there from the sig campaigns