It's just exp for leveling. Like how if you explore you're given "exploration exp".
That is not correct. See below.
Oh, so it count as normal experience? Thought it was something different hehe. Thanks!
Yes, it counts as normal XP in the sense that all XP helps leveling up your character, but the source of the XP can vary.
XP - You get this for solving a quest or a part of a quest.
Exploration XP - You get this for entering specific areas in the world.
Charisma XP - You get this for winning a CIR (Charm, Intimidate, Reason) mini game.