Stay Fresh - Always shower, apply deodorant, and brush your teeth before you come dancing. If you get sweaty change your shirt.
Say "Yes." - When somebody asks you to dance they are opening themselves up for rejection. Whenever possible say, "Yes." If for some reason you cannot dance, offer a valid reason and promise to dance next time. If you turn somebody down you must not dance with anybody else for that song.
Say "Thank you." - At the end of a dance say, "Thanks! That was fun!", or something like that.
Make eye contact - Social dancing should be social. Be sure to look at your partner now and then so that you both have fun.
Dress Properly - ATOMIC Ballroom is a casual studio. Jeans and t-shirts are common. But, on some nights you should dress at least a step up from casual. Lindy, Salsa, and West Coast Swing are casual. Ballroom and Tango, tend to be dressier. Remember, you are going to meet a lot of people so you may as well make a good impression. Also, wear clean shoes that don't fall off.
Follow the line of dance - Ballroom dances move counter clockwise around the dance floor. The fastest dancers should stay to the outside and the slowest dancers should stay closer to the middle. If you are doing a stationary dance such as swing, then dance in the center and let those doing foxtrot, move around you.
Share the Floor - Dancing can be a hazardous sport! During crowded dances you should make your movements smaller and keep an eye out for other dancers sharing the floor. In social dance situations avoid aerials, lifts, and drops they can be extremely hazardous to other dancers and yourselves.
Stand outside the dance floor - Dances at ATOMIC can be crowded. Please leave the people dancing as much space as possible by standing on the edges or by sitting on the benches.
Apologize - Accidents happen. When you run into another person while dancing be sure to look at them and say, "Sorry!", then continue dancing. At the end of the song offer another more personal apology and ask if they are okay. Take the blame even if you think it's not your fault. Ideally both parties follow this rule.
Dance for fun - People social dance because it's fun! Unsolicited teaching is the biggest "no-no" on the dance floor! However, if somebody asks you for a suggestion, you are more than welcome to add your two cents!