When choosing an app that I don't normally use, I decided to go with "Duolingo," a language learning app. My goal for using this app is to improve my proficiency in Spanish. To define metrics, I will track the following: - Number of lessons completed per day - Time spent on the app per day - Score on practice quizzes My top line metric would be the number of lessons completed per day. An incremental goal that would drive this metric could be to increase the time spent on the app per day by 10 minutes each week. This would allow me to complete more lessons and improve my proficiency in Spanish over time. Additionally, I would aim to increase my score on practice quizzes by 5 points each week to ensure that I am retaining the information I am learning.