Korra's probably better dressed for the club than Tohru, at least. She's in her plain, but clean and colorful clothes; a skirt and a turtleneck sweater. She's not deterred by the difference between her clothes and the usual outfit of others in the club, as Tohru, likely, hasn't noticed.

To her, they're just people here to have fun, and it's her first time in a dance club. It took her a while just to look around and get a feel for the loud music and lights ('But it's so dark in here!'). Once she did, though, she started to dance away, trying some of the moves she had learned from the dancing curse. A little hip swaying, what little bits should could recall Jinora teaching her. It's all fun to her.