Check out this episode of Addicted2Salsa, where they show you how to perform a basic blind cross-body lead with a loop-over lock salsa move. If you've ever wanted to dance the salsa, this is the place to learn. Julie Merrill and Anthony Persaud or some of the best salsa instructors out there.
While the move may look easy at first, it is the timing and the proper leading where some may have difficulties. Also, see how to take it and chain it together with going from a cross-body hammer-lock to a reverse loop-over. This is considered a more intermediate dance pattern because you have to be very careful on how you lead this move. These moves done incorrectly, can hurt.