the dictionary defines “hospitality” as “generous and friendly treatment of visitors and guests.” restaurants are certainly part of the hospitality segment of business, yet many fail to remember putting the word into practice. not so at thehappinn, a casual but remarkable eatery in the northern chicago suburb of northfield, il. from the moment of our arrival, being seated by the hostess, and waited on by ossie, we felt like guests, not customers, and that’s one of the keys to a successful restaurant operation.