I love playing racquetball at the gym. It's similar to tennis, but without a net.
That sounds like fun!  Do you need any special equipment?
You need a racquet and a ball, but you'll also need a court that consists of walls, floor, and a ceiling. Nothing too special!
Cool!  Do you play against an opponent?
Yep! There are two players. It's sort of similar to American handball.
Ok, I think I understand - how do you score points?
You pretty much just hit the ball against the walls, floor, and ceiling, but there are designated areas that are out-of bounds.
I'm pretty sure I would like playing racquetball!  Is it a popular sport?
It's fairly popular, and it's very easy to learn how to play. You should give it a try!