The “lie” refers to where the golf ball is situated on the green with regards to the slopes and undulations between the ball and the hole. George is saying that he has a hard time “reading the green” (i.e., knowing which way the ball will turn on the way to the hole), which is why he has a caddie around, so the caddie can read it for him and tell him the lie.
The “lie” refers to where the golf ball is situated on the green with regards to the slopes and undulations between the ball and the hole. George is saying that he has a hard time “reading the green” (i.e., knowing which way the ball will turn on the way to the hole), which is why he has a caddie around, so the caddie can read it for him and tell him the lie.