Dance is a form of art that involves expressing your emotions and moving your body. (Music is usually included, but not always.) There are tons of kinds of dance: Ballroom, Tap, Latin, Jazz, Lyrical, Contemporary, Hip Hop, and of course, Ballet. Improvisation is a technique that you will use a LOT in dance. To "improvise" , you have to:
1. Breath
2. Don't think
3. Move through your music*
4. Express your emotions
If you want to REALLY dance in front of audiences, take dance classes at a studio near you. I hope you enjoy dancing as much as I do!
*Sometimes music isn't needed for Improvisation.