8-1. Advice
During a stipulated round, a player must not:
(a) give advice to anyone in the competition playing on the
course other than his partner, or
(b) ask for advice from anyone other than his partner or either
of their caddies.

8-2. Indicating Line of Play
a. Other Than on Putting Green
Except on the putting green, a player may have the line of play
indicated to him by anyone, but no one may be positioned by
the player on or close to the line or an extension of the line
beyond the hole while the stroke is being made. Any mark
placed by the player or with his knowledge to indicate the line
must be removed before the stroke is made.
Exception: Flagstick attended or held up – see Rule 17-1.
b. On the Putting Green
When the player’s ball is on the putting green, the player, his
partner or either of their caddies may, before but not during
the stroke, point out a line for putting, but in so doing the
putting green must not be touched. A mark must not be placed
anywhere to indicate a line for putting.

Note: The Committee may, in the conditions of a team
competition (Rule 33-1), permit each team to appoint one
person who may give advice (including pointing out a line for
putting) to members of that team. The Committee may
establish conditions relating to the appointment and permitted
conduct of that person, who must be identified to the
Committee before giving advice.