Don't know how to do these exercises

I've been trying to do some Kegel Exercises but i don't know how to clench my PC muscles. Can anyone help? i know where they are but just don't know how to clench them

 

start off by stopping and restarting your flow of urine that should help establish the path to the brain that controls these muscles

 

I've done that and i know where they are but i still can't

 

can you stop and start your urine flow? If you can then you can do these exercises.

 

sure, i'll clench your pc muscles...