This was amusing. Noah leaned back in his chair as the girl turned back around to soak in the sun. He would have laughed, would it not have ruined whatever game they were playing. - Macy - if the girl were Macy, she would have demanded, politely, that Noah say 'you're welcome.' She wouldn't have taken the cigarette, certainly, but if she had, she would not have liked Noah's obvious disregard for social norms and/or polite conversation.
This girl, however, seemed completely fine with taking a drag on a stranger's cigarette and then tanning, or whatever the fuck people did at the beach.