What does it mean that social triggers?

Other people can serve as triggers — asking someone to remind you is a social trigger.

Example: You want to run every morning but you've failed to do it alone for three months. You text a colleague: 'I'll be at the park trail at 6:30 AM. If I'm not there, call me.' The next morning your alarm goes off and you think about rolling over — but the image of your colleague standing at the trailhead waiting activates something no alarm could. You're out the door in four minutes. The trigger wasn't the alarm. It was the person.

Try this: Identify one behavior you've been trying to trigger consistently but keep failing at. Choose one person — a friend, partner, colleague, or peer — and make a specific social agreement: 'I will do X at Y time, and I will report to you by Z.' Make the report format concrete (a text, a photo, a shared document). Run this for seven days and log each activation. Compare your completion rate against the previous seven days without the social trigger.