The phrase implies that actions are a stronger reflection of one's commitment than mere words. She may have apologized, but it's her effort to change that shows actions speak louder than words.
Pro Tip 2/3
Sincerity Over Promises
Use this phrase to suggest that genuine actions carry more weight than just promising to do something. Rather than just saying sorry, he actually helped me fix the problem. Actions speak louder than words.
Pro Tip 3/3
Observing Behavior
When assessing someone's character, watch what they do, not just what they say. She claims to be eco-friendly, yet drives a gas guzzler. Actions speak louder than words, right?