How can you tell if someone is using Facebook Dating?

To determine if someone is using Facebook Dating, it can be quite challenging due to privacy features. Typically, only users of Facebook Dating can see each other's profiles within the service. One way a person might infer that someone is using Facebook Dating is by noticing certain behavioral patterns on their regular Facebook profile; for example, if they mention experiences or events related to Facebook Dating specifically, or if mutual friends discuss the service around them. Another indirect method could include the person themselves sharing their dating stories or mentioning their participation in the service in conversation. However, without direct disclosure from the individual or access to their private activity on Facebook Dating, knowing with certainty whether someone uses the feature is not straightforward.