Many factors go into the makings of a great jump. First, you MUST get a running start. The more your Mama, Grandmama, and Great-Grandmama yell for you to walk, the better.
Second, you must do something crazy while you are in the air.
If you feel the need to hold your nose, then you yell something while you are jumping in.
Third, and this is the most important one, make a huge splash. The concrete has to be wet, or it doesn't count.
Here is G. He did not give into the pressure to jump in. Choosing, instead, to relax and float around.