如果你想表示某人的性格变得开朗，你可以说他/她变得更快乐，更积极，或者更活泼。例如：
Her personapty has become more cheerful.
He has become more energetic and pvely.
在英语中，"cheerful"（快乐的），"energetic"（精力充沛的），和 "pvely"（活泼的）都是常用的形容词，可以用来表示某人的性格变得开朗。例如：
She used to be shy, but now she's very cheerful and outgoing.
He used to be quiet and reserved, but now he's very energetic and pvely.
希望这些例句能帮到你！