Yeah, people can tell somethings different. And catch words or phrases give it away like you said "Cono" is a big tell for Cubans. there's alot more to it that could write a book, the way some words are used tells you if someone was raised poor or affluent, from the ghetto or solid, education versus none, etc. I actually surprised myself last week that I still had my recognition skills being in San Diego and around primarily one type of Latinos for so long now. But me personally I can pretty much nail where someone is from for every country.
Yeah man, the consensus amongst most Non-PR latinos is they butcher the language and it sounds very for lack of a better word, vulgar in the way they pronounce words and say things. No to mention the dialect is different enough, that words that Mexicans have no idea of, never heard before, Puerto Ricans (and other places) use as common words. Thats pretty much what i hear from everyone, and I have a tendency to agree. Especially the slang, is completely different everywhere... HOWEVER, it all goes out the window once common speech changes to something regarding education, business or whatever. An educated person is just that, and no matter what accent or regional dialect each has it's recognized immediately. sort of like a person from the parts of the US with a real slow Southern Drawl, right away you think they may not be too bright, until you hear more out of them.
Just like you can tell someone is from Texas, SOME Latinos can tell what country someone is from. But its typically when they've been around a bit and have heard almost all if the accents before to begin with. For example, someone born a raised in Mexico and never left Mexico or never met someone from somewhere else will only recognize the person speaks different, but wont have a clue from where.
So you're starting to sing while you speak.
. I think it depends from what part of the Island though. I can tell almost to the exact city most of the time where someone is from,throughout Latin America....Been around a bit. And Im not even a native speaker.
Was on the phone with a guy just last week trying to make him a client, we were speaking Spanish, and he had to ask me where I was from cause he said i sounded in some cases, Colombian, and others things I said sounded DFMexican. I told him American, he didn't want to believe me, haha. Then I asked, and what part of Caracas did you grow up? and he was flabbergasted. Needless to say he's a client now.
Yeah, I know, jus sayin, never ceases to amaze me the few times I take a visit.