Ask them both to say “Out and about”. Then you’ll be able to tell.
Some Floridians do have southern accents, but many do not have an accent or if it is there it is much more subtle.
Always thought this map was more accurate.
I’m still a little confused, how do they differ from the Northern/Southern areas marked in the map? Dialect? Economics? Politics?
Strictly, all humans speak their language with an accent. How “thick” the accent is will depend largely upon the perception of the listener.
For instance, your textbook “unaccented” Floridian will sound very much “accented” on the streets of Kingston, Jamaica, or in a working-class pub in Bimingham, England.
Yep, I’m a third generation Floridia Cracker, born and raised in Tallahassee, and my accent is pretty much purely deep south. Y’all and reckon and yes, ma’am. But once you drop below Gainesville, you tend to head north again.
As an interesting aside, Spanish speakers who have lived in Florida for a reasonable length of time tend to lose their native accents too. I had friends from all possible nationalities and they all spoke what we called “Florida Spanish”. It is a more or less neutral but still distinctive accent that sounds like none of the major contributors (Cuban, Mexican, Rican, Venezuela, Colombian).
For English, I guess the fact that most cities in South Florida have a heavy influx of people from other regions contributes to mix up the accents to the point where you can no longer spot any of the contributing accents.
Indeed, in Gainesville itself you can find both crackers (everything west of the Turnpike) and “regular people” (everything east of the Turnpike - mostly around the university).
I have a friend who lives in Gainesville but is originally from a bit further South, and she and her entirely family have a very distinctive Southern accent that even I, a Brit, can differentiate from Texan or Mississipi (though it does sound rather like the accents in Georgia). They were proud Crackers, though - her Dad was a real cowboy! Her cousins still ran a ranch, and not the rich Dallas-type one either! (I was thrilled - it was like walking into a movie). So some Floridians definitely have Florida accents. That is, of course, only one family, but it was a very big one. 
Sshhhhhh…we are trying to keep it a secret up here!
Yeah, we know, but there’s no real word I can think of to describe what many in the US would consider unaccented. Basically, the standard news anchor accent. Unless you can think of a word?
Peter Jennings for instance.
Peter Jennings was Canadian. No wonder people are confused.
Yep, I, as a Californian, noticed that when I went to what I think was called Destin, Florida.
I had no idea, thanks!
It would be more accurate, if perhaps less descriptive, to call it General American. Although it originates in a swath of the Midwest, the Northern Cities Vowel Shift (as in Detroit or Chicago) as well as the noted features of Minnesotan speech militate against using “Midwestern” as a description.
Moreover, “Midland” is now divided into two dialects: northern Midland and southern Midland. Although there appears to be some overlap between the region where General American is thought to have originated and the northern Midland region, when one wishes to identify the dialect that American English speakers would not mark as featuring an accent, “General American” is the term most linguists would use.
Well, not necessarily. I was raised in Florida since I was three years old, before that I lived in Cuba. I think, no I know, that we have a certain…slur, I guess you could say, to our words. When we speak, and as we’re talking to someone else we don’t hear it, but if I record myself talking I hear the certain drunken slurring of all my words. I guess it’s just a Miami thing, but I sear this is how we sound here in Miami. 
anyways… I’ve never heard a southern sounding Floridian, and I’ve been to like every city in Florida and I drove to Tennessee with my family once so I know how the Northern/Southern Georgia & North/South Carolina accents sound, I’ve never heard a Floridian that sounds anything like that. But I guess it’s cause I live here and I think I’m just used to it…
My post #37 has been reported. It was supposed to be its own thread obviously.
nm
Specifically which English accent don’t you have?
My cousins are from Jacksonville. They have an obvious accent as does my aunt.