Four players, two sides.
Padel is played as doubles, with two players on each side of the net. The glass and fence are part of the court, rather than simply its boundaries.
The serve starts low.
Bounce the ball and strike it at waist height or below, into the diagonal service box. If your first serve fails, you have a second attempt.
The glass does not always end the point.
During a rally, the ball can bounce on your court and then off the glass before you return it. Play it before its second ground bounce. When receiving a serve, let it bounce first.
What about the score?
Points are counted as 15, 30, 40 and game. The basic way to win a set is six games with a two-game lead. The rules allow different methods at 40–40, so agree the format before starting.
What to ask the venue.
Ask whether you can rent a racket, whether balls are provided and which shoes suit the surface. If it is your first time, let your group or coach know.
Arrive a little early to find your way around and get ready. The aim of your first game is to understand the flow and enjoy it, rather than know every regulation.