This drill is good practice for doubles if you only have 2 people. Simulate
a point in doubles by serving to the other person and coming
into the net while they hit cross court. This will allow you
to practice serve and volleying and this will allow your partner
to practice his/her cross court return for doubles play.
If you are not use to serve and volleying on your second serve now is
a good time to practice as well. In doubles if you can develop enough
confidence to serve and volley on both the forst and second serves your
doubles game will be better off.
Good Luck on the Court!