Behind the ear, Temple, Chin, but other things work too such as the nose or eyes because they water your opponents eyes unless there a boxer and are used to it.
Give em a nice hook right on the back of the ear
If someone gets in your face... rock his nose as hard as you can.. he won't want any parts of you after that.
the temple is common but one on the chin can put someone down flat
the temple but it also can kill them just aim for the stomach or sides of face
I'm going to 8th grade n just in case if I'm gunna get in a fight I just want to know. Or how can I knock someone out that knows how to fight but mostly how do n where do you knock someone out