I like the art and colors of these Japanese subway posters that remind people to be considerate of others. However, I think it is fun to watch people apply makeup in public. It's like watching someone paint, which I enjoy.
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Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects
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