If Hera didn't have thousands of years worth of practice at controlling her expressions (even if she didn't always use that practice when she'd been on Olympus), she would have done something to make a scene as her youngest child (at least from her time as a goddess) seemed to materialize out of thin air in front of her. She hardly could believe it wasn't some figment of her seriously over-active imagination. Hebe? Here? It hardly seemed possible. It certainly didn't seem likely. Not after meeting Amphitrite earlier.
Two thousand years with only the rarest of meetings with the others, and now two in a matter of a week? How? What?
Blinking past the shock, Hera's expression of bedazzlement slowly softened into one of pleasure. "Hebe..." her voice was soft, partly because of the shock, partly because of the location. She didn't know if her daughter was there alone, or what name she was using now, or... well, anything. "Daughter... sit!"