The method used to find your pelvic floor muscle—stopping your urine mid flow—is actually an exercise in itself. Each time you stop urinating mid-flow, you're actually exercising your pelvic floor muscles and doing a version of the kegel exercise.
From this point on, every time you go to the restroom, stop peeing mid-flow and restart at least three times. Don’t be shy though; if you have the time (and the urine) to start/stop six, seven, and even eight times in one session, then go for it.
The kegel start/stop is not only good for building stronger pelvic floor muscles, but it also continually reminds you of where your pelvic floor muscles are. This is a good benefit because it often takes a while to fully get the hang of Kegeling.