Close your eyes and relax. Cup your hands together, leaving some room in your hands but don't have a open space where air can come in. When you do that just wait for energy in your hands.

for fire, you will feel the heat in your hands getting burning hot
for wind, you will feel a breeze moving around in your hands
for water, you will feel like there's water sitting in your hands
for earth, you will feel your hands just drying up like a desert