Few people = not many.

Little people = munchkins.

Also, take the time to work out the difference between "true" and "correct".

When we are talking about people we usually use 'few' to talk about how many people there are and 'little' to talk about the size of the people.

There are very few people here ---->  there are not many people here

They are all little people  ------> the people are not big