The best way to learn proper English is to read news report, and watch news on TV. Watching TV shows is a great way to learn casual English, slang words, understand culture reference and humor. If you have already watched these shows then you may recall the words used in the following dialogs.

Now listen to me, Pod.
Game of Thrones Season 6, Episode 8

Pod rick fucking Payne.
Game of Thrones Season 6, Episode 8

Best friends, besties, BFFs,
peas in a POD,
The Big Bang Theory Season 5, Episode 2

Pod.
Game of Thrones Season 2, Episode 10

Thank you, my dear. Pod.
Game of Thrones Season 3, Episode 3