A garrulous person talks a lot, especially about unimportant things.
A petulant person behaves in an unreasonable and childish way, especially because they cannot get their own way or what they want.
A credulous person is very ready to believe what people tell them; therefore, they can be easily tricked or cheated.
Someone who is querulous often complains about things in an annoying way.
Someone is tremulous when they are shaking slightly from nervousness or fear; they may also simply be afraid of something.
Someone who is jocular is cheerful and often makes jokes or tries to make people laugh.
A regulation is a rule or law that orders how people must act or behave.
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