The book Tabitha fell asleep reading while on the couch is "Harry Potter and the Order of the Phoenix" by J.K. Rowling.
The characters Tabitha and Steve are named after the writer's favorite author, Stephen King, and wife Tabitha King.
When Steve is sitting on the couch waiting for Tabitha, the TV can be heard in the background and the movie he is watching is Last Action Hero (1993).
Steve and Tabitha are heading to their friend Andrew's party, which they refer to as "AndrewFest." This is based on the production team's Co-Founder, Andrew Eriksen, who names all his house parties "AndrewFest."