I think that you can if you pay attention to detail.

Two quick examples, that I've noticed over the years.

Most non-native speakers pronounce the Italian ciao as "chow". But I noticed that a woman in Capri pronounced it as "chah oh". Not as separated phonemes, but as a smooth, quick transition from one to the next.

Similarly, most non-native speakers pronounce the French oui as "we". Instead, it is pronounced as "oo ee" - again, a smooth, quick transition from one phoneme to the next.

(I'm compelled to confess that I only speak English. But I have some understanding of Romance languages (and took a few years of French, decades ago). And, like many other programmers, linguistics in general is an interest of mine.)