"Here’s what everyone (male and female dogs) should do during 'busy' time. Take your dog to the relief location. Tell the dog, Busy Busy and then stand still. Let the dog walk around you, but don’t move. This is how students relieve their dogs. It isn’t safe for them to wander around a relief area, so they stand still and let the dog walk around them."
This came from a longer post by trainer Karen Mersereau full of tips for dealing with unspayed/unneutered puppies. The Blue Coat Journal is the puppy-raising blog of SEGDI, so be sure to check it out!