choose, chews

Choose or choose means to select, opt, or decide--
 We should read the reviews before we choose one of these.
If you choose to continue, your data may be lost.

Chews or chews ( rhymes with choose ) is the third person singular ( he, she, it ) form of "chew", meaning to bite or grind food with the teeth--
The dog chews on his toy all day.
He makes too much noise when he chews his food.

Now that you know that, you can say--
"We let hin choose a toy, and he chews on it while we ride in the car."

Note--the third person singular ( he, she, it ) form of "choose" is "chooses"--
We'll be happy with whatever he chooses.