This positional sequence starts from the low mount, with your ankles crossed behind your partner's hips and your hips driving into your partner's solar plexus area for maximum control of their hips. Start by establishing solid shoulder pressure with your left arm underneath your partner's head, gripping the far armpit if possible. If you can create some shoulder pressure on their neck, that works fantastically to sap their will to live (and to get them to react exactly how you want them to react). If not, just focus on turning their head away. Next, establish an underhook with your right arm. Hooking underneath their elbow (much like a heel hook finish) can help to establish this by walking your fingers up toward their head. As their arm creeps up to their head, they'll have a simple choice: either they'll give you the arm triangle, or they'll try to overhook your arm and give you the reverse armbar. Assuming they opt for the latter, as soon as you get there, start climbing up until you can get your feet on your partner's hips. Finally, you're all set to finish the reverse armlock as described below.