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.

We're BAIT. They're using us as BAIT.
Money Heist Season 1, Episode 4

We're BAIT. They're using us as BAIT.
Money Heist Season 1, Episode 4

One of us has an anxiety attack
and you only think that you're a BAIT.
Money Heist Season 1, Episode 4

using a bull's head for BAIT.
Vikings Season 1, Episode 2

Cinnamon is chick BAIT.
The Big Bang Theory Season 12, Episode 23