Some guys can pull it off. It's not necessarily hot though, not to me anyway. But only get one ear pierced. Two is just.. no XD. But fuck what people say, it's your looks. If you like ear piercings, you should get them. There are tons of girls who find them super attractive, if that's your concern :)
It kind of depends on your personal style. I'm a no tats, no piercings kind of guy. I don't have any fascination with it at all, and it almost seems kind of cliche nowadays. But it can work on the skater type dudes, or if you do the "white boy thug" look, a la Justin Bieber. Personally, it kind of looks "try-hard" in my opinion, but you're probably not looking to impress me anyway, haha. I'd avoid gauges, those are a lifelong disfigurement.