Her office is at the end of the 'hallway'.
I'll meet you in the front 'hallway'.
(..) What's his problem? His imaginary girlfriend broke up with him. Been there. Sorry I'm late, but I was in the hallway, chatting up Penny. Really? You, Rajesh Koothrappali, spoke to Penny? Actually, I was less the chatter than the chat-ee. (..)2007 TvShow: The Big Bang Theory Title: The Big Bran Hypothesis Season: 1 Episode 2
(..) I had no choice. I couldn't sleep knowing that just outside my bedroom was our living room, and just outside our living room was that hallway, and immediately adjacent to the hallway was... this. Do you realize that if Penny wakes up, there is no reasonable explanation (..)2007 TvShow: The Big Bang Theory Title: The Big Bran Hypothesis Season: 1 Episode 2