Hahaha do it! I usually put some bitcoin stickers in books or magazine about tech, economy, politics, taxes..
Discussion
There are some of these boxes around, and I’m definitely going to stick my stickers in them. I figure it’ll spark more curiosity than just slapping one on a post.
For sure! Sometimes i leave some stickers on tables, the perfect spot is a table or bench with a plug where you can charge your phone, because the guy have his phone in the hand and some time to spend..there is a higher chance he scan the sticker and fall in the rabbit hole 
smart! im copying that too! 😆