To water a live Christmas tree, follow these steps:
1. Fill a bucket or watering can with water and place it next to the tree.
2. Use a watering wand or a gentle stream from the hose to water the tree from the top down.
3. Water the tree until water begins to drip from the bottom of the tree, but don't soak it too much.
4. Check the soil regularly to make sure it is moist, but not waterlogged.
5. Water the tree every few days or as needed, depending on the temperature and humidity.