But it doesn't want to lose those hydrogen bonds because hydrogen bonds are stabilizing. So because on the surface we have this air phase and because the molecules cannot interact with the air molecules, that means the water molecules on the surface will be constrained to that location. They will not be able to move as freely as the molecules inside our water because by moving or rotating on the surface they lose those precious hydrogen bonds. And we only have a limited number of hydrogen bonds on the surface. So on the surface of the water, the water molecules are more restricted. That is because they cannot interact well with the air molecules above.