Talking at the 2017 DGA Awards, the 64-year-old actor said that he shared some pearls of his wisdom with Johnson so that he gets the nuances of the character right, reported E! News.
The secret was to, "Be cool, have fun and save lives," Hasselhoff said.
The veteran who has an undefined cameo in the movie also said that he loved working with the new cast and as the reigning Sexiest Man Alive, Johnson "was really kind".