Both girls and guys wear nose rings if they have their nose pierced.
If you are wondering which nostril to get pierced to wear a nose ring... read this:
Ettie: Hey Fret! I really want to get my nose pierced!
Fret: So then DO IT, Ettie!
Ettie: But I'm not sure which nostril to pierce..
Fret: You FOOL, Ettie!
Fret: K i want you to breathe out air from your nose
Ettie: WHY, what are you going to DO to me?
Fret: JUST DO IT ETTIE!
Ettie: OK, OK! *Breathes out air from his nose*
Fret: *Puts hand on Ettie's nose*
Ettie: HEY, why did you just touch my nose, Fret?
Fret: OMFGZ ETTIE, YOU ARE INAUSPICIOUS! AHHHHH YOU ARE EVILLLLLLL EVILLLLLL EVILLLLLLLL!!!!!!
Ettie: I am so NOT evil Fret, what are you talking about?
Fret: The air you breathed out was released from your RIGHT nostril. Those who release air from their RIGHT nostril are EVIL.
Ettie: Omfgz, you serious?
Fret: YES, I RELEASE AIR FROM MY LEFT NOSTRIL, EVERYONE ELSE I KNOW ALSO RELEASE AIR FROM THEIR LEFT NOSTRILS! WHATS WRONG WITH YOU.. AHHH GET AWAY FROM ME YOU EVILL EVILLLL MONSTER!
Ettie: *Tear tear*
Fret: *Runs away*
Ettie: WAIT you never told me which nostril i should get pierced...
Fret: YOUR RIGHT NOSTRIL... BECAUSE THATS WHERE YOU RELEASE YOUR AIR FROM... BECAUSE YOU ARE EVIL! ..AN EVIL MONSTER!!!!