The moles on his face are easily seen,like his happiness
while those on other parts of his body are called the hidden.
just like his fear, sadness or bad side.

the mole is deep black, it suggests that this man is full of confidence,potential, strong,powerful

Short tempered and often get angry. but still his pride will never hurt you

A good mole here symbolizes the man will purchase a magnificent residence, land and other real estate in old age. On the other hand, it suggests a good taste in life.