He notices you, but he simply waits for you to come over. It means he wants you to walk up to him on your own. After scanning you for a few seconds, he returns his gaze to his phone.

You trudge over and sit down next to Good Man.

Hmm. It's Guest.

He doesn't even look at you sitting next to him, keeping his eyes fixed on his phone.

The game I introduced to you yesterday, it's fun, right?

Good Man is truly an elusive person. He seems playful, yet he isn't.