The actor revealed to The AP that he is frequently asked to give hugs to male New Girl viewers while on the street.
"It confuses me a little. We'll have our arms around each other and I'll think, 'Our ears are touching'," Johnson joked. "It's not offensive. It just doesn't need to happen."
He also said of his aversion to hugging men: "My brother is my best friend in the world and in our lives we've hugged 15 times. With fame, you can't be that guy who says no.
"So, the surprising thing of fame is the amount of man arms that have been around my shoulders for photo opportunities."
Johnson also quipped that he hasn't been very successful in getting New Girl's writers to listen to his ideas for storylines.
"[Producer Liz Meriwhether will] go, 'What, Jake? I'm so tired'. And I'll go, 'This is how it has to be'. And she'll go, 'No, just say the lines'," he teased.
New Girl star Zooey Deschanel recently said that she is "not sure" if a musical episode will ever be produced because it might not fit "the reality of [the show's] world".
The sitcom returns for a second season in the fall on Fox.
Watch a trailer for New Girl below: