Sitting on the BMX, you need to click "Submission", then you can start working. To finish the job, also click "Submission" (number 2). During this mission, you will see two indicators on the screen - Newspapers and Earnings. Newspapers - this is the number of newspapers you have, initially it is zero. To replenish the stock, you need to ride a bike to the red marker near the place where the bike was standing. The maximum you can take is 5 newspapers. Clients are shown on the map as a white square or triangle. There will also be a white marker above it. To give the client a newspaper, you just need to drive closer to him and Karl himself will throw him a bunch of newspapers. For each completed order you will receive $70. By the way, unlike other sub-missions, the death of the client will not cause the mission to fail.
P.S. The script was made based on the user's script - dim1988, "Pizza delivery man".