There are a few ways to tell if someone is a sugar mommy. The most obvious sign is if they're constantly buying you things. But there are other signs as well. If you ask them for money, and they say no, but then later on they offer to pay for your dinner or give you cash in some other way, chances are good that they're a sugar mommy. If they have a lot of material possessions and show off their wealth in front of others, this can be another indicator.