About the right inflating of a balloon and what you need to know about it
Before you start to inflate your balloon right away, please have a look at your surrounding. If you find some sharp or hot things there, just put them away or please be careful. Otherwise there would be no tip needed to extend the lifetime of a balloon, because it would be gone already.
So, you checked your room and are willing to start now. Then take the balloon with your hands and stretch it a little. Afterwards inflate it real firm, either by using your lungs or a pump, that doesn´t matter. If you got the feeling to reach its limit, then stop and let some air escape again.
This technique helps your balloon to get more range in relation to its breaking point, because you inflated it over the intended size and prestreched it by that. So your balloon becomes more stable and you can sit on it without any problems or do other things with it. Sure, the quality and stability also can depend on the balloon brand and can vary slightly.
But one thing you should always have in mind: there is no guaranty, that a balloon won´t pop. It is in the nature of things, that a balloon can pop sooner or later. But now, have fun while inflating and remember „ the proof of the pudding is in the eating“!