Things You'll Need
Instructions
Stretch out your balloon longways to warm it up and give it a bit more elasticity.
Insert the balloon pump's nozzle into the end of the balloon, and hold your fingers over it to give it an air-tight seal.
Work the balloon pump so that air is inserted into the balloon. Do this slowly at first to see how much air is added to the balloon with each pump.
Continue working the pump until the balloon is as full as you want it. Be careful not to over-pump your balloon. If it's getting close to the end, stop pumping it to prevent it from popping.
Remove the balloon from the pump nozzle, still holding onto the end, creating that air-tight seal.
Let any air out of the balloon by slightly opening your fingers that are holding the end of the balloon. Do this only if you are finding it difficult to tie or want less air in the balloon.
Tie off the balloon with a knot.