For leg kick spammers spam back with takedowns provided you are a wrestler or clinch up and fake the thai clinch and go for the sweep if your having trouble with the double or single leg.For Over hands lunge back and throw a straight and circle out.The jab straight block the jab and slip the straight and fire back with a hook keep mixing it up to the body legs and head to confuse them and make sure you pick a fighter based on your fight style.