When someone rents their service, the umbrella boy will pass the umbrell to be used by the renter and will accompany them to the destination.
Most of umbrella boys bring only 1 umbrella withour reserve. So, in most case, while the renter is protected from pouring water, the boy must walk under the rain and get heavily wet. Only if the renter has a heart, they will ask the boy to walk under the same umbrella.
From their service, the umbrella boys will get few thousands rupiah (around 10-30 US Cents).
The opportunity of the job is sometimes very short. Depending on the length of the rain. If the rain stops, then usually umbrella boys will go home immediately.
That;s why they always pray for very long rain, because they will have more chance to get bigger income.