There are a few things you can do to clean mud off shoes if it gets on them. First, try using a mild soap solution to clean the shoe. This will remove any dirt and debris that may have built up on the surface of the shoe. If this is not effective, you can also use a vacuum cleaner to suck the mud and dirt off of the shoe. Finally, if all of these methods are not effective, you can try using a dryer to heat up the mud and dirt and then use a brush or vacuum cleaner to remove it.