If Avery had to guess, she would have said she thought Robin was having a very serious mental debate. When he had seemed to give up, she frowned and considered leaving if just to make things less awkward. That, or she thought about raiding his kitchen for wherever he might keep his liquor. He already knew she could handle her drinks. It probably wouldn't even be very surprising.
Instead, Mira saved the situation by asking why Avery was at Robin's. Of all of the questions anyone could ask about the situation, Avery figured it was the easiest to deal with or answer.
"We didn't know each other until this past week. Robin and I met through a friend, and were going to do lunch.." She replied. It wasn't so strange, Avery thought, to be telling her friend about this. But it was weird, however, to be talking about it in front of the guy in question.
When Mira changed topics, more or less, Avery frowned. "Really? Did you.. need to talk about something?" She asked finally, not sure, still, what was going on. Mira obviously knew Robin fairly well. Her eyes flicked between the two, wondering how long Mira was going to stand there without a care of what she was wearing.
"Look," She turned to Robin after a bit, standing up from the couch to do so. "If today isn't good, I can always come back later."