Fake it till you make it
In order to hide how they feel from the rest of the world, they are masters of hiding their mood and they can always fake a smile. They are afraid of what may happen if they bring their demons to the surface.
Cover-up stories are their thing
Depressed people can come up with extensive excuses for almost anything in order to move away the attention from their feelings.
They cannot calm down their mind
These people have so many thoughts because they live at high speed. They are very analytical and deep.