The girl is a student and she is having a discussion with her professor who is holding office hours. Her really good guy friend sees her and comes up behind her to say hey but she is discussing things so intently with her professor that she doesn't notice him. His name is Claudio and her name is Erin. Claudio feels pretty awkward because Erin doesn't notice him but the Erin's professor Maribel Lumis obviously can because she is facing Claudio. Professor Lumis is pretty understanding and points out to Erin that her friend is saying hi. Erin says "Oh hey Claudio" and Claudio goes on his way.  
