When you dilate, you don't want to cough, sneeze or giggle because all of those activities will force the dilator out. Getting up and moving around will likely cause you to use the same muscles resulting in the same problem. You want to push the dilator in far enough that you know you are at maximum depth but it would be difficult to keep it in place if you are moving around. It's possible to use a towel while you are laying down and Susan wrote a post about it after her surgery but I am used to working with one hand free so I haven't tried it.