Getting a pedometer app also helps. If you're self-monitoring your activity level, there's a great chance you'll try to improve it (consciously or unconsciously).[1]
Allow me to advertise our app: Pacer Pedometer[2]. It comes with activity tracking, fun virtual activity challenges, healthy lifestyle lessons, guided body-weight exercise etc. We also have a corporate plan in which you can join challenges with your colleagues.
[1] Kang, Minsoo, et al. "Effect of pedometer-based physical activity interventions: a meta-analysis." Research quarterly for exercise and sport 80.3 (2009): 648-655. [2] https://apps.apple.com/us/app/pacer-pedometer-step-tracker/i...