If you've got it, flaunt it

Someone at a party last night approached me with a burning question he had been thinking about sometime. He asked, "Where do I wear the chain [with dogtags that I am currently sporting]-- on the inside of the shirt or on the outside?"
My answer-- totally rock the chains on the outside for all to see. I would like to state for the record that any sort of jewelry on men must be approached with extreme caution lest one enter the realm of "guido" or "tacky." (And B, if you are reading this, your chains were spot-on, rest assured.)
So you heard me, boys, if you're going to be brave enough to sport jewelry, wear it on the outside of the shirt for all to see.