In Republic City, everyone is celebrating the Firelight Festival, it’s when they release the lanterns. Mako and Korra ran into each other and look at each other eye to eye.
Mako looks Korra who is insecured and sitting on a rock "Are you going to dance, Korra?" Korra rubs her arm and looking away from him "I don't know Mako.... I can't even dance" Mako smiled and had his hand out "Trust me"
This is inspired from Avatar: The Last Airbender book 3: Fire on episode 2: The Headband. When Aang and Katara did the fire dance. Now Mako and Korra are doing it.