How to Deal With a Traffic Light Party

My friends Carol Zander, Rian, Vanessa, and I all decide to go to a traffic light party that was held in our high school. After being in the back room for a while, we decided to go out to the dance floor. We sadly lose Vanessa in the crowds so it's just me, Xander, Carol, and Maria dancing. I then spot Jacob circling us. He clearly was under the influence and I warned Carol and the others. They quickly went outside in an enclosed area for smokers. Lots of people were there and we had some combos with a few peeps we knew. At this point, he comes close enough to zander in me and tries to lunge