This document provides tips for building a learning habit by asking questions during different stages of building an app. It suggests asking questions to determine if an app idea should be built, get feedback on early sketches, understand how people use an initial beta version, learn how people are gaining value from the app, and get ideas for how to expand the app. The document also provides examples of questions to ask during exploratory interviews, when responding to support emails, and responding to app store reviews to continually learn and improve.