Maybe this is creepy, but that was actually kind of touching.
6. But not getting involved is cool, too
Herein lies the beauty of Berlin: this is a city renowned for people doing whatever they want, without being judged. If you don't feel comfortable having sex in public, it’s no biggie. Hit the dance floor, hang out by the pool, and -- at the risk of sounding like your mother during a "birds-and-bees" talk -- do what feels right.
7. It's OK to be a peeping Tom
A little ogling at couples (or groups!) is totally fine. In fact, it can help getting the engine started for Rule #5.
But whatever you do, don’t make a big Broadway production of it. Don't be like that couple that sat right next to me (when there were plenty of other spots around, might I add) who started grunting, screaming, hair-flipping, and nudging me in the side throughout their ride toward climax.