With the engine still cold, remove the radiator cap. fill the radiator as nescessary. start the engine and keep watch of the water level on the radiator. Keep your hands clear of any moving parts of the engine ,Squeeze the radiator hose gently to help push some air pocket out the radiator filler neck. refill the radiator as you see the coolant level go down. also try to squeeze the heater core hoses and try to push the air pockets out. and don't forget to fill the reservoir bottle to the max level.