What different experiences we all have around here.
I live in Palermo Nuevo, and being car-less, shop and frequent restaurants and cafes almost exclusively in this barrio, with an occasional adventure to CarreFour in Alcorta. I almost never see anyone I would recognize from dress, actions, or language as a tourist. The first, and still only, restaurant where I've found one English-understanding waitress was the new Francisco on Sinclair. Because I speak Spanish at about the samve level as a 2-year-old, I always try to default to English after getting through the polite phrases I know. It is so rare than anyone understands much of what I'm trying to say, well, except for a young clerk in a pet food shop who lived one year America, and the aforementioned waitress, I can't remember another occasion. This is not a complaint, by the way; if I had wanted to understand everything being said around me, I could have stayed in the States.