Hi Bilal,
To get started playing Pathfinder Society, all you really need is a character sheet and some dice, and you should register at
www.paizo.com to get a player number. To play, all you have to do is show up at Redcap's Corner (3850 Lancaster Avenue). Games are offered on the second floor every Tuesday starting at 6 PM. They tend to run about 4 hours long.
Seats at the table are available on a first come. first serve basis, and we have a website where you can reserve a spot:
https://warhorn.net/events/redcaps-pfs/schedule/2017/01/31. Even if you haven't signed up there, you can always grab a seat at a game if there is room. There are still two seats available for The Slave Ships of Absalom adventure being run tonight. That would be a good one for a first time player.
If you have any questions on character creation or the game rules, try to get there a little early and someone will help you answer them. Welcome aboard!
--Tim