I climbed up the Pyramid of the Moon some 43 years ago this summer. I was a spry (and apparently well-tanned) 17 year old. When I got to the top a British woman in her 20s approached me holding out her camera and in very deliberate language extensively explained the operation of her camera and summed up with a request to take a pic of her and her companion. I replied "Sure, I'd be glad to." In a shocked voice she exclaimed "You speak English!?! I thought you were a Mexican!"
I would have said something earlier but she never gave me the chance. You never know who you'll meet at the top of a pyramid.