13 year old character, Hannah, pretends to smoke two cigarettes, something she had seen Ethan do earlier in the show.
Characters, such as Lex, often smoke cigarettes. It is shown on stage. Lex also makes a remark, saying "Let's go, I need a cigarette."
When asked about her bad habits, Lex remarks "If I don't support my drinking habit, who will?" It is mentioned once as a joke, and unclear if Lex actually drinks.
Lex tells Tom that her mother lets her smoke because Lex "scores her weed." This is only mentioned once, but it is mentioned multiple times that Lex and Hannah's mother is not a good person.