Nipple Piercings

The idea of getting them has become more appealing as I think about it. I've already had a belly piercing and a few on my ears, so I guess you could say I'm a little more comfortable with body percings. I've always struggled with liking my boobs, so I'd like to pierce them to boost some confidence. Both are flat/inverted and I hear getting percings will actually make them point outwards. If you've gotten yours pierced what was your experience and what do you advise?