UI elements should look like UI elements and buttons should look clickable. Animations should be under 200ms to avoid appearing slow. Speed improvements benefit all users while other features may only benefit 5-10% of users. Provide context and explain the end goal to help users overcome things they don't understand. Focus on communicating values and benefits achieved through product use rather than just features. Measure key indicators first before adding more metrics to avoid getting lost in too much data. Use cohorts and funnels to identify where users may be getting stuck. Popular tools for analytics include Mixpanel and Intercom while books like The Inmates are Running the Asylum and Running Lean provide guidance on UX best practices.