Pixies are fun. They aren't really dumb, but usually so naive, they are really easy to catch.
More importantly those little flying girls are really susceptible.
Pleasure their naughty bits a bit, and they'll buy into all sorts of shit they'd normally find horrifying.
That little game where you blow them up like a balloon, its so much more fun if they chear you on with "More! More!" until they pop!
Or when you rip two in half and make bets which one can keep flying longer. They really get into it and try so hard to outlast each other.