Blur everyone and focus on you. What do you mean?

This sentence means to make your image stand out in the crowd through technical means.

Blurring all people to focus on you is a technique and effect used in photography and film shooting. In photography, blurring is achieved by adjusting the aperture and focal length, which makes the background blurred and the subject clear, thus better highlighting the subject and making the audience's attention more focused on what they want to express.