Good thing Lei wasn't hungover or plagued by post-tequila migraine like her poor brother, or else she might have had trouble following the conversation: three voices in front of her, she could handle (any more than five, though, got a little difficult).
She caught Jake's tension laced words by reading his lips as well as the obvious expressiveness in his face, then looked up to the two men for reaction. Of course, the first one's comment was 'loud and clear', considering he was closest to her. Lei's brows arched high in obvious recognition, but she wasn't necessarily offended (amused, actually). She could tell Jake was, though, after catching his sharpened gestures in the corner of her eye.
That didn't fly with her. Flirting of that nature was fine in certain circumstances, but Jesus, show a little fucking tact. You don't go implying hand-jobs in front of the object of your interest's brother.
Plus... she could tell Jake was really bothered. That killed the mood.
"And now you may never know." ...She signed and 'spoke' toward the first: her smile bright and cheery, but certainly a LOT less warm and inviting. "Go enjoy your drinks, and come back when you learned some manners."