Maybe instead of wearing it you could incorporate it in conversation when you're at DG. Let them know that the anchor is special to you as well, and let them know your reasons. I remember we had a PNM who had a boyfriend in the coast guard and she mentioned she had an anchor necklace (but wasn't wearing it). We all liked her in the first place and when we found out the anchor was special to her too, it just made us that much more excited.
p.s. - She's now a sister