Pokemon trainers are going to have to get to know a few of their pocket monsters awfully well in order to get them to evolve. In Pokemon Sun and Moon, Eevee, Munchlax, Pichu, and Type: Null all require high happiness ratings to level them up to their next forms. It can be a tedious and time-consuming task. Luckily, someone figured out a way to game the system.
According to a thread on reddit, there's an easy way to evolve these Pokemon, and it only takes approximately 10 minutes each. Here are the steps from user Leafeon111, verbatim:
via destructoid http://ift.tt/2fVOovk