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, this is your wedding,
just PICK whoever you want.
The Big Bang Theory Season 11, Episode 12

...in Orange County to PICK up her TV?
The Big Bang Theory Season 2, Episode 19

Skyler, it's me. Pick up. Pick up.
Breaking Bad Season 5, Episode 14

and PICK something I want to do
that she also wants to do,
The Big Bang Theory Season 12, Episode 20

...looks dumb, take your PICK.
The Big Bang Theory Season 6, Episode 2