Some as most humans
Eyes are very weak and people will react very defenively if you go for the eyes.
Same for anything on the face, actually
Taking swing at someone 's head is a good way to freak them out because no one wants to get smacked in the head (well not without consent anyway.
The solar plexus is also a fairly weak point, it 'll wind some one and that's a gross feeling
Similarly a knee to the got will also slow someone dowe
Knees are also great place to injure if you want to slow someone down