Before the first night falls, you should know how to make a campfire in Minecraft. In addition to lighting your base, campfires can be used for cooking and collecting honey.
Minecraft: How to Make a Campfire
Here's how to gather everything you need to build a campfire:
Collect 3 wood blocks. Chop down trees to get wood blocks. Any type of wood will do (oak, fir, jungle, etc.).
Craft 3 Sticks. Place 2 wooden planks in the crafting grid to get sticks.