It's good to provide tips for people.
Jane had a very attentive and good waitress while eating at a restaurant, and is done eating.
Jane wants to thank her waitress for great service.
Jane decides to thank the waitress with a tip and a verbal compliment.
Jane decides to verbally thank her waitress instead of providing a tip.
The waitress is glad to make more money and Jane feels generous.
The waitress feels insulted and shows it on her face while Jane feels guilty.