I like ya topic here Sara. Honestly I don't really use headlocks too much but I think everyone here gave ya a pretty good idea on how to use it. I've heard of that neck crank thingy and I've been shown like a chinlock where its kinda like a sleeper with your elbow around their neck only ya put it around their chin and squeeze and twist. It hurts a lot and can be pretty effective. Hope that helps ya!