This is a skill that would help improve the quality of your riding.
Prerequisites – Stopping with one foot, balancing a standing bike with one feet on the ground, breathing, look ahead.
Homework – Check out my YouTube video. Practice in a safe environment first. Don’t expect to master this over one or two sessions on a parking lot. This takes time and patience. Invite your friends to do such type of a race in an empty parking lot. Have fun. When you take this skill to the street, make sure that your surroundings are safe. Double check for that.