Adopt a 'mindful smile moment' - choose three fixed points in time during the day (for example: morning, afternoon, and evening) to remind yourself to smile, even during routine activities.

Choose one less favorite task each day, and consciously decide to perform it with a smile, while noticing the change in your feelings.

Create a 'smile spreading tradition' - give a genuine smile to at least one person every day, and observe the immediate impact of this simple gesture.