Generally from people who hadn’t wore them.... I’ve had them fall out of my ears once when I was taking my jumper off with them on. I run with them on.

They are a slightly different shape to the earbuds that come with iPhones so worth a try even if those fall out a lot.

My only issue in my half year of use so far has been this - they don't fit nicely in my ears, but I know people where it is a perfect fit. If this could be improved, I'd be a very happy camper.

I don't feel like the AirPods are that secure when I run with them, so I use some medical tape [1] to secure them to my ears. This is kind of weird, but I've done it since March and really like not worrying about them falling out. I cut off a small 5mm strip of tape, make a loop, and stick it right below the black sensors on each AirPod. They stay firmly attached even when my ears are sweaty and I'm shaking my head.

[1] http://www.amzn.com/B000C4RRQE

I’ve had AirPods for a little over a month now and they have never fallen out of my ears - they are sturdy enough where it’s not even a concern. And thinking about it, why would AirPods fall out of your ears any more than wired Apple earbuds.

The technology is really seamless - my only gripe with the product is battery life. You can’t listen and charge at the same time, and I’ve never gotten all day batter life. It makes it hard to use as a daily driver - I have my AirPods for most situations and then a set of headphones for work on the laptop

AirPods fall out of my ears significantly less than Apple's wired EarPods ear buds, which is to say almost never. (I guess it's because there's no cable pulling down on them.)

My set is still pretty new (~2wks), but so far I have been able to use public transit, mountain bike (though generally I don't wear them here so I can disconnect and hear others on the trail), and work out with them never falling out. The only cases I have come close is like most others mentioned here, wearing them when changing shirts or my toddler grabbing them.

I've worn them mountain biking without a problem. I've even crashed hard off my bike and they stayed in just fine.

I've had my pair for about a year now - only times they've fallen out are when something brushes against them. Usually when I'm trying to take a sweater off or something.

They don't fall out for me even when doing extreme exercise.

Nope, although I haven't really used them much outside. Just walking around, or sitting, or at the gym at a treadmill.

Gone on rides, dancing, runs (all rarely) without any problems. Initial there was fear on my part, but never worried.

I regularly run road and trails with mine and they stay in place.