Has Zac Franich already revealed The Bachelor's winner?

An expert in reading body language believes Zac Franich may have already revealed the winner of The Bachelor NZ.

Franich will choose in Sunday night's finale whether he will choose Lily or Viarni, the end of a process that saw him dating and eliminating 20 other girls on Three's romance reality show.

Speaking to The Hits, body language expert Suzanne Masefield watched footage of Franich discussing both Viarni and Lily.

She said Franich's words gave away clues about the winner when he spoke about them.

Zac Franich with Lily, one of The Bachelor finalists.

"He talked about Lily in the present tense ... then he started talking about Viarni in the past tense," Masefield said. "On a verbal point of view, that's a bit of a flag for me."

Things were different, however, when it came to analysing his body language.

"He was looking up when he started talking about Lily, and away, which is almost like a distancing," she said.

"But when he was talking about Viarni, he was looking down ... his eyes sort of light up ... it can mean that he's trying to hide ... he doesn't want you to see what he's feeling."

Her ultimatum? "I would still go with Viarni."

* The Bachelor finale, 7pm, Sunday.

This article was first published on NZ Herald and is republished here with permission.