From Wide Squat, place your palms firmly on the ground in front of you. Be sure to spread your fingers as wide as you can and press into your fingertips to release any pressure in your wrists.
Straighten your legs slightly and place your knees as high up onto your triceps as possible toward your armpits.
Shift your weight forward into your hands and see if you can lean the weight of your knees into the backs of your arms.
Note that Crow is an advanced yoga pose, so you can just stay here and practice shifting weight into your hands without lifting your feet off the floor. But if you're ready to move into Crow, shift your weight forward into your hands and lift one foot off the ground and then the other. If you can bring your toes together, you'll feel more compact and it'll be easier to balance. Squeeze your knees together slightly and pull your belly button in toward your spine to give you a sense of lightness.