You Are... Shadow or Reflection?

Hem, too many words I have spent to describe you
This, I always be questioning : Who you are, huh?

Damn, you look so real, can I say that?
You, absolutely walk, eat, breathe, whatever you do everything the same as me
But, you left a thing, a suspicious thing : The way you fill the empty heart is as the same with the way you smack it out...

Reflection... Are you a Reflection?
Things are going good while you do the right thing as me...
You speak, you run, you sit... The way you do are just the same everyone does
But, Reflection, you exist and go, just the same I go from the mirror
What say you?

So, you are a Shadow?
You come together when we go to the afternoon meadow
Silent speak, no no! You cannot speak nor peek
You just do whatever I do
but as coward as me, you never show your face

Do I say the true?