It's not ballroom dance because you don't hold your partner or lead, everyone just does their own thing.
It's simple to learn. Let's learn now:
- Stand with knees slightly bent, feet at ninety degrees with the right heel near (but not too close to) the left instep. (Technically called "third position".)
- Move your front foot back and forth like you're crushing out a cigarette.
- Now do the same with your other foot.
- Now take an imaginary beach towel. Hold your arms out to the sides and dry your butt (anatomical, not cigarette) with it.
- Now do it all at once.
You now can dance the Twist. You're welcome. Everybody Dance Now