5 things Roman Reigns should do to not get booed again by WWE fans 

#2 Bring in shades of an anti-hero in his character

The definition of an anti-hero

Until the mid-90s, pro-wrestling used to be all about clear-cut babyfaces and heels. When Hogan turned heel at Bash at the Beach 1996, it completely changed the landscape of the industry and gave birth to the Attitude Era. The major highlight of this era was the emergence of anti-heroes, a character trait that was well received by the fans. Stone Cold and DX are just two of several examples of how a simple change in character turns wrestlers into megastars.

Roman Reigns is a traditional babyface at the moment. One major upgrade that would make sure the fans don't boo him, is for Reigns to turn into an anti-hero. This is a character who is kind of a lone wolf, doesn't care what anyone thinks of him (no matter if they're heels or babyfaces), and is way more interesting than a bland traditional babyface.