This is a short little guide I wrote on how to wear your diapers and hide them good enough to wear around other people without them knowing.
So, you have your diapers on and taped nice and neat. Great. Now, what's next? Well, the best thing to have on above your diaper is a pair of tight-fitted briefs or boxer-briefs. This keeps the crinkle of your plastic-backed diapers low enough so that others won't notice, but you will, so to speak ;-). And, if you have multiple pairs available, it won't hurt to wear more than one pair. It can only help by hiding your diaper more.
Next thing, is that Sweatpants > Jeans and shorts. Especially during Winter seasons, where you can wear multiple pairs of sweatpants over your diaper and undergarments for added security.
Now, with all these layers of clothes, you can wear your diaper without having to worry about crinkle. But an added bonus is that most people won't even see a bulge, considering with all the layers it doesn't exist because of all the layers of clothing.
Sometimes, your pants can slip down a little bit, especially when walking. Which, may or may not reveal your diaper. How to make sure this doesn't happen, you ask? Wear a long shirt. Sports fans, a jersey will work perfectly. With your long shirt, you could even hang your pants a few millimeters from the top of your waist, revealing your diaper a little bit just for your own pleasure, reminding yourself of what your wearing. Keep in mind that your shirt is fabric, though, and that any whiff of wind can lift up your shirt.
Some people think that using your diaper out in the public might be dangerous considering that walking/moving can loosen the fit of your diaper. But, with the added protection of underwear(s) and sweatpants, your snug fit should stay snug enough to hold a wetting or two.
Messing in public, I would never recommend. Even with any odds, no matter how low, it is not worth trying. With the worst case scenario with wetting, and it leaks, you can just say "I've had an accident" and run to the nearest bathroom to change, and if you're lucky you can blame it on exercising too much or laughing too much... If you're REALLY lucky. But if you were to mess yourself, you can pretty much guarantee on getting found out/caught.
so... if anyone has any tips to add, please do!