Whassup Nick!

The great thing about snowboarding is the many different ways to do different things.  Jumping is a prime example!  

The easiest way is to "Ollie" (formerly known as "snollie") which can be achieved by just leaping up both legs together OR sk8 style by springing off the tail of the board.  Do not think of it as leaning, just pressuring (helps for overall balance).

Of course once you get more advanced, you can take into account the additional factors of combined speed and terrain.  For example, dropping a cliff or launching off a mogul do not require the boost of leaping, especially at higher speeds.