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.

Look at me, Hector.
Breaking Bad Season 4, Episode 8

GUS:
Hello, Hector.
Breaking Bad Season 4, Episode 8

- I need him, Hector.
- Go.
Westworld Season 2, Episode 3

HECTOR ESCATON:
Where is she?
Westworld Season 2, Episode 3

This is what comes
of blood for blood, Hector.
Breaking Bad Season 4, Episode 8