Luke saw the other guy and heard his greeting. He didn't feel any flare of danger sense but still kept his guard and shields up. He looked young, maybe early 30s, but Luke got the sense there was something different about him that wasn't visible on the surface.
"Hello. I'm just trying to get a feel for things." He said. "I've only been here a couple of days..:seems like there's always more I'm finding out. I've been to quite a few planets in my time, but this one seems to be one of the strangest."