[QUOTE=jj2me;3646533]If the covers don't reveal romances (and that includes having vines and flowers sprouting from the cover's bottom), there are plenty of keywords found in titles that generally indicate a romance, like what's below in the spoiler (because so many just flowed out of my head and I don't want to clutter the thread with a long list):
It's possible to come up with books that those words that are not romances. So I don't see how a list of words can differentiate between romance and not.