Walking to a car, it's the place where a conversation becomes momentarily awkward, and often comes to a complete halt after a few failed attempts to shout over the large American sedan or SUV. Emerging from the autopause, the appropriate sentence is "What were we talking about?"
Jane and I were walking to the parkinglot- talking of memories past when upon arriving at the car we put our grocieries in the trunk. In order to get into the car, we went thru the autopause and felt weird that we could not see each other. We had time to think independently for a moment, and when we backed out into traffic, Jane said "What were we talking about?"