Ace stopped walking when he heard the collection of voices behind him. He saw Sparrow snap at Z and Tim, rolling his eyes in an irritated response. 
Z raised her eyebrows at her. "[i]That's rude, considering I don't know you,[/i]" She signed with frown, disregarding what Sparrow had just said. "[i]Have we met before? Did I do something to you?[/i]" There was a cocky smile playing on her lips as she 'spoke'. 
Ace crossed his arms, taking a moment to wait for the other two. "Z," he called, getting her attention. "Come on." Z gave a little huff, glanced towards Sparrow with that cocky smile, before turning to catch up with Ace.