You have an awesome chain that is super cool. Perhaps a cross, a medallion, or a shark's tooth? Are chains and necklaces worn in or out? Aaron Marino of alpha m. asks if these necklaces should be worn on top of your shirt or tucked in your shirt?
Alpha says to gently conceal these accessories, displayed as subtle accents rather than blatant expressions. Options include wearing a v-neck or one more button undone if you want to show the chain just a bit. Bottom-line, tuck it in!