性格 + 开朗 / 很 + 开朗
开朗 (kāilǎng) means "optimistic," "cheerful," or "open-minded" and is an adjective used to describe someone with a bright, outgoing personality. It is often used as a predicate with 很 or 性格 (personality) as its subject. It describes a general temperament rather than a momentary mood.
她的性格很开朗,大家都喜欢她。
Tā de xìnggé hěn kāilǎng, dàjiā dōu xǐhuan tā.
She has a cheerful personality, and everyone likes her.
你变得越来越开朗了。
Nǐ biàn de yuè lái yuè kāilǎng le.
You have become more and more cheerful.
开朗的人比较容易交到朋友。
Kāilǎng de rén bǐjiào róngyì jiāo dào péngyou.
Cheerful people find it easier to make friends.