[He let's go and laughs a little himself, while wiping the sweets off of his face and vest.]

You'd think I'd have an easy time finding you, but I've been looking for hours! I almost thought maybe you didn't come here with me... [That would've seriously scared him, if he was in this weird place all by himself.]

I guess this place is kinda cool, but aren't you at least a little worried? I mean, do you even know where we are?

[He rubs the back of his head, looking around for a moment.]

I think someone would've told us about a huge, abandoned amusement park around Gravity Falls... [This smells like something Gideon related.. but then again, Gideon was in jail...]