When right wing radicals call you a liberal, they expect you to go run screaming, afraid of anyone knowing that you support what liberals support: Liberty, investment in communities, and responsible government.
Don't fall into the right wing's trap. Stand up and acknowledge, with no shame whatsoever, Yes, I am a liberal. Of course you're a liberal. It's the only sensible thing to be in a democratic society. Be a proud liberal with this bumper sticker on your car.