1. When I arrived in France, I went through customs, and as soon as it was over, I took a taxi and went to my friend's place.
2. When we were at the passport control, I noticed that the officer was studying my photo very attentively.
3. When the plane took off, I looked out the window.
4. When we were waiting in the arrivals, we saw my roommate who was meeting somebody, too.
5. We saw them off to the departure lounge and waved them goodbye.