For me, there’s nothing more fun than taking pictures of people who are being photographed by other people. It helps to be in an area frequented with tourists, like Cancun, Playa Del Carmen or Las Vegas. So far nobody has yelled at me for taking their photo. Usually in a loud voice I’ll say something like “Bellissima!” or “Paparazzi!” or some other Italian or Spanish word, then quickly walk away.
A wedding party is another great opportunity for photos of other being photographed. We were walking to the beach when we stumbled upon this scene for a photoshoot. Of course words like “Bella” and “Felicidades” are in order in a situation like this. Just smile and keep walking.