Last year was definitely the year of the flash mob proposal. From UCLA to Union Square in New York City to an overground train in London -- partners proposed to their loved ones using flash mobs big and small the world over.In 2010, Urlesque called a Washington Square proposal, "one of the cutest uses of a flash mob we've ever seen." And many of us have ooh'ed, aww'ed and sniffled back a few tears of joy at our desks while watching these over these over-the-top public displays of love.