The correct positioning for a lapel pin is for it to sit on the left side of your chest. The easiest way to remember this is to always follow your heart, in the most literal sense possible. Most suit jackets come with a small buttonhole on the left lapel to indicate where the lapel pin should sit.

Where do you put a female lapel pin?

Typically, when a woman wears a lapel pin it is on the left side of her clothing at about the height of a breast pocket. To show her professionalism, the lapel pin is worn in a line down the left side if she has more than one. It's not a frivolous inquiry from women obsessing about their appearance.

Where do pins go on a shirt?

There's one uncompromising rule when it comes to pin placement: it must be on the left lapel. Slightly under the collar point and north of your pocket square if you're wearing one.