I've been wandering around and posting stuff in the forums, and wonder, must you do certain things a certain number of times to get tickets for the forum shop, or is it random?
It's totally random whether or not you'll get one each time you post in the forums- basically, you have to talk your face off XD

I reccommend posting a lot in User-Run Games/Chit-Chat, and claiming in Trick-or-Treat/Kiss/Dance with the user above you threads during the upcoming holidays, it makes it a lot easier to rack up some forum points while claiming for kisses/dances/etc.