Gotenks398 said:Hey there!
About the exp. thing even Serebii said that you won't be able to gain Exp. till a particular point in game.
I suggest keep playing until some tutorial part ends.(According to Serebii)
I believe him and I think there isn't any AP thing for levelling up.
http://www.serebiiforums.com/showthread.php?t=466228
See post #6
There's reports that contradict that, as well as people saying they've got to the second city and still not started gaining exp, so there's obviously a problem.