Answer:
What is always in front of you but can't be seen?
I am perfect with a head perfect without a head; Perfect with a tail perfect without a tail; Perfect with either neither or both.
I am alive without breath and cold as death. I am never thirsty but always drinking. What am I?
My first part compliments people. My second part makes things known. My third part hurts feelings. My fourth part may hold a precious treasure. My fifth part is used when sharing fancy beverages.
I am bought by the yard but worn by the foot. What am I?
I will disappear every time you say my name.