請問形容別人的性格bubbly, 點解呢?

形容別人的性格bubbly, 好定唔好?
When you use bubbly to describe a person, that means such person is lively and full of high spirit. This person can cheer people up and is somewhat proactive in doing things.
If someone describes you as bubbly, it should be a kind of compliment.

係好開心, 好活潑同好樂天咁解.