Show Don't TELL IV

Each of your characters should have a distinct manner of speech. The obvious example is proficiency with language.

For instance, Bob is ESL (English as a 2nd Language) speaker, Diana speaks very cultured Queen’s English, and Miss Lily is a southerner—their way of expressing the same thing will be entirely different.

Bob: What is it that you do for the work?
Diana: In what area are you employed?
Miss Lily: Whatch y'all do for a living?

Does your character punctuate her dialogue with “um” or “like”? Or, perhaps they use a lot of slang. Here again is where the tv and your writer’s notebook comes into play.

Be careful with transliterations of people's speech. You don't want to over do it and importantly you don't want to offend someone.