The Dog Leg Dance is a dance in which the knees of the two legs are continuously brought together and then separated.
It is important to pay attention to the distance between the legs, the bending of the knees (for the most part), and the coordination of the legs. It's also important that your head and hands work together.
Gee's dance instruction video (with broken down version, slow motion version, full version):
/player.php/sid/XMTA1ODkyNDEy/v.swf
For the dress, you can have two choices:
1. White short-sleeved T-shirt + monochrome skinny pencil pants (in bright colors) + pointed toe high heels.
2. White or gray tight long-sleeved collarless shirt + monochrome skinny shorts (lemon yellow, light pink, light green) + plain white socks + lace-up flat white heels.