Cocktails and happy hours are a Milanese institution. It has a vibrant and varied cafe/bar scene, offering great spots to sip a fine 'aperitivo' in the sunshine, particularly in surroundings of the parks.
In most places you will find free, and usually fine quality, buffets on offer as part of many 'happy hours'. Milan also has a cosmopolitan selection of bars and nightclubs going on into the early hours, international events and top quality DJs which attract the rich and famous.