They make him curious, give him pause- but he doesn't stop or slow. He turns his head, focuses his optics- but continues on, searching.

And finally, finding.

He stands in the doorway now, staring at Solus, utterly unsure of what to say- not that he really had an idea before. He knew he needed to find her, speak with her, but now?

When the last time he saw her he was a sparkbroken child, and acted like a child, running away. Now?

Now he looks down at his hands, at a loss for words, and then back up, bringing them together and bowing slightly in a gesture he's picked up from one of the many civilizations he's happened to pass over.

Respect, greeting.

"...Sister."