I had to pluck up the courage to ask him if I could take his picture and eventually did (in Spanish!). However, it turned out the sneaky picture I managed to get of him whilst eating on the opposite table was more natural than the ones I got of him when he knew I was taking his picture. When we were leaving the restaurant he said to me in English "I am eighty five years old."
Now I have this picture forever to always remember what happened in Lanzarote.
xxx