Positivity is contagious. Sharing a kind word, a thank you note, or even a smile can start a chain reaction. With this in mind, Amy Humes created her Positive Message Graphics, reusable stickers that lead you spread happiness, inspiration, peace, and the power within. We love Amy's idea so much, we decided to take her message to the web. Feel free to pin, tweet, like, and share these encouraging buttons as reminders that optimism really is viral.