Hydrogen bonding between water molecules. H bonding is responsible for many of the important properties of water such as high cohesion, surface tension, boiling point and its role as a universal solvent.
One last view of a water molecule. FACT: Water has the highest cohesion of any non-metallic liquid. One of the reasons for this is the polarity created due to one side having a POSITIVE CHARGE (near H atoms) & a NEGATIVE CHARGE (O side).