Field the ball outside your glove-side foot
Look ball into glove
Hit the cut-off man
A crow hop is executed with the back leg hopping in front of the front leg. It is intended to gather the momentum behind an outfielder's throw. In the case of a right-handed thrower, this athlete will field a ground ball outside of his left leg (glove side). A proper crow hop will entail his right leg hopping in front of his left leg. Allow an outfielder to take one or two steps before executing the crow hop.
For more information, check out my book Coaching the Beginning Pitcher.