Building a snowman in Minecraft is a simple process. First, you need to gather three snow blocks. Then, place the first snow block on the ground. Next, place the second snow block on top of the first one, and finally, place the third snow block on top of the second one to create the snowman's body. To make the snowman's head, you'll need to use either a pumpkin or a carved pumpkin. Simply place the pumpkin on top of the snowman's body. Now your snowman is complete!