When doing kegel exercises are you supposed to squeeze your PC muscle?

Yes. You have to contract your gluteal muscles. These are located in the buttocks. You should also thrust your pelvis forwards at the the same time. This can be performed standing, sitting or lying down. Kegel exercises can also be performed by placing a medium sized inflatable ball between your knees and squeezing your knees together. Contract muscles counting to ten, then relax and repeat 10 times.
Kegel exercises. All of the levator muscles should be squeezed. This includes the pubococcygeus.