In the video, a person is preparing a smoothie. They start by placing a variety of fruits and vegetables into a blender. The blender is then turned on, and the contents are blended together to create a smooth mixture. The person then pours a liquid, possibly milk or a milk substitute, into the blender and continues blending until the smoothie reaches the desired consistency. The smoothie is then poured into a glass, and the person takes a sip, indicating that it is ready to be enjoyed.