If this is your first attempt at the Lazy Vault try an obstacle such as a gate about abdomen or waist height. You can do this vault from a slight jog or a running start. Approach the gate (obstacle) and place your dominant hand on the top getting a good grip. Kick your feet up in front of you and kinda pull yourself to the other side of the gate (obstacle). Before you hit the ground release the gate (obstacle) and give it a quick touch with you other hand before landing. Sometimes even a push with your other hand to insure that you don't land on the gate (obstacle).