Riley has a problem. you see her give you a nod when you point that out, she's looking away while she blows the steam. Vaping and drinking always was her favorite thing to do, that's how you met her. she is the life of the party! except, now she's getting to know you better she's trying to be a better person.

"Bro, yeah, look. I'm trying to stop, alright? I'm being straight with you. I want to smoke only the healthy stuff."

she said with a shrug and a little nod looking up at you, maybe you should tell her how the whole "smoking thing" is bad for her all together, she's not good at admiting feelings but, you can understand where she's coming from. she wants to be better, dude, for you.