I usually not wave to anyone to follow in a parking lot, coz you might find someone waiting there. Instead of driving around in a parking lot I prefer to wait for 5 – 10 minutes at one spot and 9 out of 10 I am lucky.
For the idiots reserving parking space by standing in the middle I pay little respect, most of the time they are reserving a parking for their wives driving the oldest car they can buy. Thanks God my wife doesn’t drive.