Unprompted feedback is heavily biased toward the extremes. People who were delighted and people who were angry will tell you unasked. The much larger group in the middle, who found it fine but noticed something, will not, and that group holds most of the useful information. Which means waiting for feedback to arrive gives you a distorted picture that overweights both praise and complaint.

Ask specifically rather than generally. What did you think produces a polite nothing. What almost stopped you from buying, or what was the most confusing part of this process, produces an answer. The most useful single question for a small business is asking recent customers what they nearly chose instead and why they did not, because that reveals both your competition and your actual differentiator, and it is frequently not the one you assumed.

Then close the loop visibly. When somebody suggests something and you act on it, tell them. That single act converts a customer into somebody who feels ownership, and it costs a message. It also encourages the next piece of feedback, because people who see nothing happen stop bothering.

The discipline that makes this worth doing is recording it somewhere countable. One line per piece of feedback, tagged by theme. After twenty entries, patterns appear that were invisible individually, and you will find that the thing you were about to fix was mentioned once while something you had not noticed was mentioned six times.

Be deliberate about which feedback you act on, because acting on all of it produces incoherence. A request from one customer is information. The same request from four is a pattern. And feedback from somebody who is not your target customer can pull the business toward serving people you deliberately chose not to serve. The filter is whether the person asking is somebody you want more of, which is why segmenting by value before responding to feedback tends to produce better decisions than treating every comment equally.

Ask at the point where the experience is complete rather than immediately after purchase, since those measure different things. Somebody who has just paid can tell you about buying and knows nothing yet about what they bought. Timing the question to when they have actually used the thing produces answers about the product rather than about the checkout.