Oakmont definitely has the trickiest, most subtle greens I've ever played.
Though I haven't played any of its competitors for this award.
For fun, I would usually try to read the greens myself, then listen to my caddie.
I'll never forget, maybe it was 10, I had a 15 footer for birdie, I predicted it would move 2 feet right.
My caddie points to a spot 3 feet behind my left heel (when I was addressing the ball aiming where *I* thought I should aim). He said "act like you want to putt it to here." I thought what the hell. Tapped it to that spot 3 feet away, then watched it curve and break and trickle to six inches.