They like to talk.
Kindergarteners are learning new words and how language works, so it’s natural that they want to use their new knowledge for themselves. Sometimes what they say makes little sense to adults, but every time they open their mouth is a chance for them to learn.
What you should do: Encourage your little one’s talkative nature. Do activities like singing songs, telling stories, reciting poetry and staging plays. If your kid is still stuck on one-word answers, it’s normal. Just keep encouraging and talking with her.