Kick up into a handstand: place your hands on the ground shoulder-width apart, lift one leg up, jump off the other one, then bring the legs together at the top.
Let your back arch and your legs drop slightly past your hands into a curved (banana) shape, with your shoulders not fully opened.
Balance by pressing your fingertips into the ground so that your center of mass stays between your wrists and your fingertips.
Form tips
This is a valid progression toward the straight-body Handstand : the arch makes balancing easier, and it does not load the back.
Risks
Make sure you are comfortable falling before attempting this exercise without a wall. When falling because of overbalancing (too much weight forward), the easiest way to get out is to "pirouette": move one hand forward (generally your dominant hand) and turn out of it with a motion resembling a cartwheel.
Make sure you can hold your weight up before attempting, to avoid falling head first on the ground. A 30-second Back-to-wall handstand is necessary.
As with most handbalancing exercises, this creates a lot of tension in the wrists: make sure they are well warmed up before practicing.
