Some individuals may encourage you to wait "this many days" before making contact, but that method is just ridiculous. Dr. Nerdlove, a dating writer, advised us to contact someone sooner rather than later. "For a first date, if someone does not call or text by the 15-minute mark—and they should let you know prior—I would not continue to wait," says matching and dating specialist Stef Safran. Bonnie Winston, celebrity matchmaker and relationship specialist, suggests giving them some extra time.