Table 2.

Behavior change strategies to either drive engagement or completion of the desired behavior.

Initial engagement strategies	Prompts for action (i.e., behavior change techniques)
Curiosity	Anticipated regret
Gain frame	Behavioral practice/rehearsal
Implementation intentions	Credible source
Loss aversion	Comparative imagining of future outcomes
Power of free	Goal setting
Prosocial	Information about health consequences
Reduce friction	Instruction on how to perform behavior
Self-efficacy	Salience of consequences
Social proof	Social comparison
Trusted messenger	Social support (emotional)