Bilingualism

Tonight at the play I saw someone whom I was supposed to know but didn't recognise. I knew him from French Table (he came a few times a couple of years ago, I remembered his name when he told me) and he thought it was funny that we had never spoken in English before. In fact, I had failed to recognise him last week when he was at the meeting with Kim Beazley. That was the first time he had heard me speak English and so tonight he said to me, "I didn't know you had an accent in English."
"I don't. You do!" I replied.
"Well, I didn't know that you were Australian until then," he corrected himself.