The words "cute" and "kind" are often used interchangeably, but they can have different meanings.
A person becomes whole when he shows more kindness than just politeness.
What does it mean to be nice

Being a nice person generally refers to a person's behavior, including politeness, courtesy, and friendliness.
A nice person strives for harmony and avoids conflicts. He always leaves a pleasant impression, even if it is not sincere.
Such people try their best to be convenient for everyone so that no one will think the worst about them when they are not.
What does it mean to be kind
On the other hand, kindness implies a stronger sense of compassion and empathy.
A kind person acts with sincere motives, caring for the well-being of others.
Kind people often do selfless things, even if it involves difficulties.
When the choice is between being kind or being nice, it is better to be kind.