With simple tips!
Most often when people are waiting to pick up or drop a passenger off on a small road with vehicles parked on both sides, there is a small chance to park near a curb in order to prevent blocking cars.
Often times on the road there are double-parked vans or trucks loading or unloading their cargo. When someone also needs to double park on the other side of the street, it is unwise to double park next to the truck.