It's not that Zephyr follows without question -- he's been around the block a few too many times to trust someone he's just met unconditionally -- but he has a good feeling and he doesn't feel like questioning anything.

Anyway, he was the one opting to believe X in the first place.

So Zephyr falls into step, pacing with long easy strides at X's heels, keeping half an eye for people who look maybe too interested. "Just X?" He's not one to judge other people's name choices, he just wants to be sure he heard right. "Nice to meet you too." He thinks. Probably.