Invisible

Here I am.
I’m standing right beside you.
Do you see me?
I can’t tell-
I wave to you,
Talk to you,
Smile at you,
Tap you-
No response.
Are you happy?
Sad?
Do you even remember me?
I can’t tell.
You keep talking,
But not to me.
I wonder why,
But then I remember,
That I am but a mere ghost