Actually it's the scene where Mako is looking for Bolin after he leaves with the Triple Threat Triads. Jinora shouts "Good! Light on your feet!" Then once Korra gets off, Jinora says "ooo, he's cute. Korra, is that the handsome fire bender boy that drives you craaazy?" And Ikki goes on to say "Does he drive you crazy in a good way?! Or does you drive you crazy like you liiike himmm?" Korra then bends the earth beneath them and sends them flying.

That scene is like my favorite thus far.