Say you’re visiting a new city and you’re looking for a place to have lunch. One cafe is bustling and busy, you hear the sounds of diners happily enjoying their food and waiters scurrying from table to table to fulfill more and more orders. The second cafe is completely deserted, row upon row of empty benches, no person to be seen apart from a forlorn owner pleading you to please come inside.
It would convey an obvious common sense to plump for the busier restaurant, seeing happy, contented diners would aid persuasion that the first option was indeed the better choice.