I eat food that smell good from the start. If it passes that first sieve, it goes on to the second one, which is "Does it look delicious?" If it still passes that one, it goes under the last sieve, which is "Is it an 'eatable' animal, or is it a frog, a serpent, or some cat from the neighbor's house?" You get the point right?
When it comes to drinks, I am usually turned off by how it looks. End of story.