Open the cupboard and get out a glass

Go over to the tap and turn on the cold (or hot if you would prefer)

Place the glass under the running water but be carefull not to get wet

When the glass is full remove it from under the tap

Turn off the tap and hold the glass

Hold the glass to your mouth tipping it towards you but be carefull not to spill any or you will have to dry it up

Once finished put the glass in the dishwasher or sink or repeat if you are still thirsty