Click on the [Faction] link on the sidebar, just above the inventory section. From there, select the [Join a Faction] link near the top of the page. Then just choose the faction you wish to join, and click the button.
Among the Star Wars Combine 08 day this month, but still did not understand the game. What I have to do to start playing. For now I'm filling a multitude of questions and I'm not finding the game itself. I asked one of the factions, but not replied. I think this game is anyway. Nobody seems to be willing to help.
I would suggest that if someone does not contact you from a Faction Request within 2 days, move on to another one that will. If they can't reply within that amount of time, just think what it will be like going forward.