Everyone who meets me knows right away I like Pokemon. My entire family knows, my friend knows (we met through Pokemon by playing Diamond/Pearl together at an orchestra program), in fact, even random strangers know I like Pokemon because I have Eevee evolutions and Bulbasaur on my bag. I've got nothing to hide. I've never hidden my passion for Pokemon, even when I first started liking it.
People who see my Pokemon keychains in public always compliment them, and since I'm already in this deep, I may as well show myself off as a Pokemon fan with no shame.
Pokemon is my biggest, and longest passion in life, so I've never been afraid to let people know I'm a fan.