Qual è la differenza tra Freak e Geek ?Sentiti libero di rispondere con un esempio.

It depends on the context, but these words aren't really the same.

▪I'm an anime geek = I know A LOT about anime and/or it's a hobby of mine and I'm really crazy about it.

▪I'm an anime freak = I am obsessed with anime (but this could be in a bad and unhealthy way.)

Both can mean the person knows a lot about a certain subject. But individually:

▪He's a geek = a nerd/dork/loser or someone who's super smart and/or knowledgeable.
▪He's a freak = he's a pervert or disgusts me OR he's into sexual stuff and I do like it.

Both can be seen as negative or positive depending on the person.