Ein moment!

He looked at her, and nonchalantly pretended not to look. She did the same - a quick look and back to her journal (in his mind - he could feel her eyes on him) To be brutally honest, it was a lot to ask of a librarian to look "cool"while re-arranging books, but he managed it with aplomb - This, in spite of his rather large ears, which reminded one of the handles normally found on a vase from the Ming dynasty. He counted down the seconds to the time he could look at her again, to catch her looking at him and make the all-important eye contact. 5, 4 : he took a deep breath to slow his pounding heart. 3, 2, 1, and looked up at an empty chair.

Quid Pro Quo, Sirs!