Up or down round or square

Up or down round or square knock knock anyone there?
Up or down round or square hello hello doesn't any one care?
Up or down round or square why oh why do you just stare?
Up or down round or square am  i here or am i there ?
Up or down round or square!
Up or down round or square!
Up or down round or square!
I give up because im not up nor down round or square im a triangle.