Markings? Cousins? --ohh. It takes Tidus a second to figure out what Rezo means, but he thinks he's heard about that, humming an acknowledgement. Alright, he'll ask someone about that later. But, for right now-

"Someone else is probably on the job," Tidus says with a wave of a hand. "But it sounds like you're making friends! You still looking for more? I'm already here - I'll give you a hand. Maybe save you from losing your clothes entirely."

There's a fun sprinkling in that, a rise to his friendly smile.