Rebekah tends to spend a lot of the time in the bars here, mostly because between events there isn't a lot else to do, honestly. And as a vampire she's basically a functional alcoholic. For Rebekah it's been a long time since she's seen Matt, a few years, but he's always a welcome face to her, someone she had parted on good terms with. So when she spots him making his way in she waves him over.
bar!!
"How long have you been here?"