"Nice" is an adjective that describes something pleasant, agreeable, or attractive.
However, you can use different verbs to express the idea of being nice:
* Be kind: This is a common way to express the concept of being nice.
* Treat someone well: This emphasizes the actions associated with being nice.
* Show courtesy: This focuses on politeness and respect.
* Be friendly: This highlights a welcoming and approachable demeanor.
The verb you choose will depend on the specific context and nuance you want to convey.