The scissors sweep is a pretty easy and simple sweep to learn and execute.
Like nearly all sweeps, they require forward motion by your partner. In this case, Dan is pushing towards the left of the photo.
In the “basic” version, I place my right hand on Dan’s head and pull him down. An underhook can also be used and this is commonly taught. My left hand is holding Daniel’s wrist. If I had an overhook here, it would be even more secure, as it would almost completely eliminate Dan’s ability to base himself.
My left foot is on the ground against Dan’s shin, and my right shin is across Dan’s waistline.
To execute the sweep, you push with your right leg, pull with your left (attempting to cross your legs over), while pulling down with your right hand and in with your left.
The “Advanced” sweep has some modifications which will increase your chances of success. In this version, you place your right knee high up on your opponents chest – nearly into his chin. This helps you break is posture, particularly when you pull down with consistent pressure with your right hand.
Your left foot goes on his right knee, and instead of pulling across your body, you push away. This further upsets his balance. This requires a degree of flexibility to pull off though.
Enjoy!