How do I do pelvic floor exercises properly?

Answer: Watch this 9-minute video and this very lovely and informative physiotherapist will tell you.

Then watch the next two videos by a urologist for lots more useful information

How to do Kegel or pelvic floor exercises by Pelvic Exercises.com.au

Pelvic Floor Muscle Exercises (Kegel exercises) pt. 1

Pelvic Floor Muscle Exercises pt. 2