Though most pickups should be smooth by nature, there are a couple of things you an do as a sender to ensure pickup is smooth.
Please label the package as soon as possible. This will ensure that the delivery will go out as soon as possible, and that the parcel will be ready as soon as the driver arrives.
Keep the parcel off to the side and ready. This will help the courier pick the parcel up quickly and get it delivered as soon as possible.