 What is Paul doing in Tangier?
One can't be too cautious about the people one meets in Tangier. The Place de France is the town's hub. It's quite a town, Tangier. Tangier is possibly the most cosmopolitan city in the world. In native costume you'll see Berber and Rif, Arab and Blue Man, and occasionally a Senegalese from further south. In Tangier you'll find some of the world's poorest and some of the richest. I didn't know Paul very well, but, for that matter, it's comparatively seldom you ever get to know anybody very well in Tangier.
 He is on a business trip to find a source of protein.
 He is on a business trip to find a source of protein.  He is on a business trip scouting locations for thrill-seeking tourists.  He is vacationing.  He is in Tangier to watch the satellite launch.