Back to Resources

Why We Act (and Why We Don’t): What Psychology Tells Us

The behavioral science behind why we act (or don’t)

🟢 Beginner-Friendly 🟡 Intermediate 🔴 Advanced

TL;DR

Understanding what drives or blocks action—things like social norms, heuristics, nudge-based prompts, or societal pressure, helps us design smart triggers that move us and others from intention to impact.

Why This Action Matters

Most change doesn’t happen by accident, it's engineered through thoughtful tactics informed by behavioral psychology. When we apply insights like default options, social proof, or reminders, we can convert good intentions into consistent actions and sustained change.

Quick Win: What You Can Do Right Now

  • Pick one barrier you face: forgetfulness, inertia, social hesitation.

  • Add a behavior trigger or prompt, e.g., set a phone reminder, pre-plan a social media post asking for support, or publicly commit to a goal on LiveImpact.io.

  • Observe if knowing *why* the trigger works helps you stick with it.

Do It Smarter: Applying Behavioral Science by Experience Level

🟢 Beginner Tip: Use simple reminders. A 2015 White House pilot showed that personalized text reminders for FAFSA filing increased college enrollment by 5.7%. Embed similar prompts for volunteering, petition signing, or logging impact.

🟡 Intermediate Insight: Leverage social proof. During Cape Town’s 2018 water crisis, public comparisons of household usage cut water use by 15–26%. Share your cause-related action and tag others to create a ripple effect.


🔴 Advanced Angle: Use implementation intentions and choice architecture. Studies show pre-booked vaccines (Sweden) and planned flu shots increased compliance by ~4% each. Build structured action paths into campaigns, e.g., “Click, Schedule, Tell Us You Did It” workflows.

Real‑World Examples

  • Cape Town Water Crisis (2018): Behavioral nudges like neighbor comparisons and public charts helped residents reduce water consumption 15–26% amid drought.

  • Obama Administration’s SBST (2015): The White House used text and email reminders across government services, boosting student loan payments by ~30% and FAFSA submissions by 5.7%.

  • Swedish Vaccine Nudge (2020): Pre-scheduled vaccine appointments led to significantly higher uptake among youth showing how default options can reshape health behavior.

  • Alibaba Cutlery Default (China): By defaulting order forms to 'no cutlery,' voluntary environmentally friendly behavior surged avoiding billions of plastic utensils.

Connect It to Other Actions

  • Log your behavioral “nudge-triggered” action on LiveImpact.io, e.g. “Used community reminder to join a local clean-up.”

  • Share your experience and why it worked on social media, model the trigger to prompt others.

  • Encourage others to set up their own default nudges or intentions with you creating a peer accountability loop.

Show Your Impact

By applying behavioral science, you’re not just *acting*you’re architecting change. Whether triggering one reminder or launching system-wide defaults, you're scaling personal conviction into community action. And when you log these actions on LiveImpact.io, you're also reinforcing the psychological principle of consistency helping others see that doing good leads to being good.

Want to Go Deeper?

Wired – How Little Nudges Can Help Win the Fight Against Climate Change https://www.wired.com/story/the-psychology-of-inspiring-everyday-climate-action

Time – The White House Is Now Using Behavioral Economics to Improve Policy.
How Obama’s Social and Behavioral Sciences Team turned behavioral science into effective government nudges time.com/4042689/social-behavioral-sciences-team

PNAS – Using Implementation Intentions Prompts to Enhance Influenza Vaccination Rates. Classic field experiment: asking employees to pre-plan their flu shot appointment increased vaccinations by over 4 pp https://www.pnas.org/doi/10.1073/pnas.1103170108

The Decision Lab – Defaults Clear, practical explanation of how default options work and why they drive behavior—from organ donation rates to subscription choices. https://thedecisionlab.com/reference-guide/psychology/defaults

Our Address

Live Impact, LLC 

Holland, MI 49424 

© 2025 Live Impact, LLC. All Rights Reserved