The title pretty much says it all. Regardless of what you do, if you under promise and over deliver, people will love what you are doing and will come back for more.
If you run a business, under promise and over deliver.
If you are a salesperson, under promise and over deliver.
If you run camps, under promise and over deliver.
The key to this strategy is it works long term. Short term, the person who over promises and under delivers might prevail but people catch on quickly. If you are looking long term, under promise, over deliver and things will be great,
Have a great day!