I don’t wash my hands every time after going to the bathroom because I don’t want to aggravate my dry skin too much. But I want everyone to think I’ve washed my hands so after I flush I turn on the faucet and let the water run for people to hear. I want it to be believable though, so I mime washing my hands to make sure I let the water run for exactly how long it would take me to really do it.
This is exactly why I use the paper towel to handle opening the door as I leave any public restroom and avoid shaking hands unless I’ve initiated a meeting or it is otherwise unavoidable!