If you cannot keep secrets.

Talkative people are usually very poor in keeping secrets. Even if they do not speak it, their eyes tell that they have a secret. They are so fluent with their talks that they cannot just keep a few things from few people. They might be the surprise spoilers. They cannot remain quiet for long. Such people are very cute as they are like an open book. They are very friendly and they make every conversation lively. They usually use a lot of expressions and gestures while talking.