Both activities are popular. Just keep in mind minimum age for face and arm painting is 2yo. If there are a lot of babies and toddlers at your party you may want to book balloon twisting instead.
Remember that with balloon twisting there will inevitably be a few balloons that pop either when being made or when the child is playing with it. If the sound of popping balloons bothers you or anyone present at the party, consider booking face painting instead.
Another important consideration is whether you booked a bouncy castle, as some bouncy castle vendors unfortunately prohibit face painting (for no valid reason, as our face paints rarely smear, and even if they do, they come right off with a wet wipe!) In this case, balloon twisting is a better choice, since unfortunately we can’t change the policies of other vendors.
If you just can’t decide, ask the birthday child what they prefer (if they are old enough to voice an opinion!), or book both – we have package options with both services included!