Its a personal gesture that can only be regulated by the individual there self! It can be based on many things. Your experience while fishing! How personable was the guide? Did you get what you expected or much, much more? Some people expect to catch fish, some realize that fishing is a wonderful, nature inspireing experience and catching fish is just the bonus. Ive seen take-outs were the river we were fishing was prodominately guides and you had to know someone to fish it with your own boat. The guides, maybe not all of them had spraypainted all over the pillars of the old bridge and what not "Tip you Guide" all over it! This was very tacky...Its like begging and the Grafity looks like hell in the nice forest. So what ever you think personally is fine. Just the gesture is like an extra "Thanks, I appreciate all the effort put forth today"

Fish on...