Few is less than you want so you are unhappy. A few is more so you are happy.
- She has few friends.
(She doesn’t have many friends. She is unhappy.)
She has a few friends.
(She has friends. She is happy.) - We have a few minutes left in the lesson. Do you have any questions?
(We have some time, so please ask me some questions.) - Few people bought tickets, so the concert was cancelled.
(The concert was cancelled because they didn’t sell many tickets.)