Simple Examples:
* She said she was sorry, but her actions showed she didn't really care.
* He talked a big game, but his actions proved he wasn't up to the challenge.
More Complex Examples:
* While politicians promised change, their actions revealed they were more interested in maintaining the status quo.
* The company boasted about its commitment to sustainability, but their environmental record spoke a different story.
* She doesn't need to say she loves him, her actions towards him clearly demonstrate her feelings.
Figurative Examples:
* The community's generosity during the disaster spoke volumes, proving that actions truly do speak louder than words.
* The artist's bold paintings spoke a powerful message about social justice, a message that resonated far beyond mere words.
Remember: The best way to use the proverb effectively is to show a contrast between what someone says and what they actually do. The action should be the most important part of the sentence, as it's what proves the proverb true.