How do you reduce frition?

To reduce friction, you can apply lubrication, such as oil or grease, to surfaces in contact, which creates a smoother interface. Additionally, using smoother materials or surfaces, such as polished metals or specialized coatings, can minimize friction. Altering the design to reduce contact area or using ball bearings can also help decrease friction between moving parts. Furthermore, maintaining proper alignment and cleanliness of the surfaces can contribute to lower friction levels.