If it's the kind of joking where they're laughing with others making everyone feel at ease or they just have a generally humorous outlook on life, that's not usually the kind of humor that points towards masked depression.

如果这是一种开玩笑的行为，他们会和别人一起笑，让每个人都感到轻松，或者他们只是对生活有一种普遍的幽默看法，便通常都不是那种指向隐蔽抑郁症的幽默。