Answer:
People walk in and out of me. They push me and I follow. When they walk out on me I close up and I stay waiting for the next person to walk into my life when I have a more open mind
With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?
I have a head and a tail but no body. What am I?
I have cities but no houses I have mountains but no trees I have water but no fish. What am I?
My seas have no water, my mountains have no rock, and my land has no grass. What am I?
Give it food and it will live, give it water and it will die.