The protagonist stands still on the street, and passers-by quickly shuttle around him. This is common in movies. How to shoot this?

Just shoot it and fast forward it. If you need to slow down the protagonist's movements, just edit the two sets of shots. You just need to stand in one position or take the protagonist in a solid color space. Just deduct the solid color part of the lens in the AE software. If the poster is satisfied, I hope to adopt it