Provide advice on how to accomplish the following goal. Give ONLY the advice, no other words or explanation.
For example:

Answer: <advice, as short as possible; a single sentence!>.

Goal: How do I prepare the balloons when making chocolate balloon bowls?
Wash the outside of the balloon, then fill the balloon with some air using a bike/ball pump.
Inflate balloons to desired size, coat with chocolate, let harden before removing.