Coolant leak

Waterpump as well. It will not drip straight to the floor, but rather run along various surfaces and eventually find the floor.
 
Not to say it isn't the water pump. It probably is. But i would also take a look at the back side of the upper radiator hose where it connectsto the block. I had a leak there and thought it was the water pump. But this was after installing a motor mount lift.