Try to tighten the muscles around your vagina and back passage and lift up, as if you are stopping yourself passing water and wind at the same time. A quick way of locating the pelvic floor muscles is to try and stop the flow of urine, mid stream.
Do not do this regularly as you may begin to retain urine.
Once you’ve located your muscles, make sure you relax and empty your bladder completely.
If you are still a little unsure as to whether or not you are exercising the right muscles, put a couple of your fingers or thumb into your vagina. You should feel a gentle squeeze when carrying out the exercise.