I cover what's real; hide what is true, but sometimes bring out the courage in you. What am I?

Common Wrong Answers
“Mask”
While a mask can cover one's face and hide identity, it does not typically bring out courage in the same way that makeup can boost confidence.
“Clothing”
Clothing can cover the body and alter appearance, but it doesn't specifically hide truth or enhance courage in the way makeup does.
“Paint”
Paint is used to cover surfaces and can create illusions, but it doesn't directly relate to personal courage or self-expression like makeup does.
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