Go full speed and pop of rollers into their transitions. Get a feel for air time. Then try a small 1 foot or 2 foot jump. Remember that the landing is always at an angle, sometimes what looks flat is not flat, because its going down the mountain. Never §stand up straight" in the air.
ALWAYS jump flat off your board, never on an edge. Never brake slide in front of a turn. Commit. Straight toward it not on an edge, pop straight over it and land flat - never on your back foort.
Have fun, mybe wear crash pads, because at first you will land on your hips.