In all actuality, Luke had been checking the journaling system again. He'd learned to like it---it was an easy way to keep up with all of the friends he'd made, especially when he wasn't near the Hyperion. And, of course, it was how he kept up with his father when the elder Skywalker was off.. finding himself, or whatever it was his dad was doing out there. He'd known before the knock even came, though, that it was his dad at the door. He always knew. There was just.. a weird kind of feeling he got in his chest when Anakin was nearby. His uncle would have freaked out if he'd said anything, but Luke was beginning to realise it was just part of what made him different. Different like his dad.
So that was okay in his book.
He was closing the notebook computer as the knock came, and was in the doorway by the time his parents were speaking. When they finally (finally!) looked his way, Luke couldn't stand it any longer. --With a gleeful yelp, he launched himself at his father, throwing his arms around the man's waist and burying his face in the fabric of his shirt.
"Dad!" he greeted happily, voice muffled by cloth. "Don't go away again!"