Four pieces, seven to each
Two more to get within my reach.
Morning, noon, evening, night,
Sometimes I'm wrong, sometimes I'm right.
I can make you happy or sad,
My face makes you feel good or bad
You see me more often than you know,
Sometimes I follow you wherever you go.
WHAT AM I?
-IMP ;) :)
P.S. I'll explain it when I choose best answer (the first person to get it right).
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