So Now First of all you have to have a reason of hitting someone not just because you can there needs to be self-defense involved
Because if you do because you can you'll most likely be punched in the face by someone or sent to the Principals office,Secondly thanks to sunshiine for telling me to do this Instructable =)

Step 1: Left Punch

So now your first punch in these 3 steps is the Left punch so firstly you Hit them in the *Left* cheek Don't use all your energy to this 1 hit because they might fight back and if your weak you won't be able to defend your-self

Step 2: Right Punch

Next you punch there Right cheek again *Don't* use all your energy in the one hit because it won't end well

Step 3: Upper-Cut

Next you hit you target under the chin this should hurt your target enough for them to not mess with you again if this dosen't work the Pm me or just comment on this page

Step 4: Don't Get Court

If you get court doing this your in *BIG* trouble weather it was self-Defense or not so become a Ninja and get out of there as quickly as possible what r you waiting for?...soup?? GET OUTTA HERE!!!