What's something everyone does but nobody admits to?

You already covered a big one.

But, nose picking.

I've never met anyone that didn't, eventually, have a boog that wouldn't blow out. They might not go two knuckles deep or anything, but a dainty pinkie poke happens at some point when there's something stuck.

Now, there's folks that only do it when there's no other option they haven't tried, but our noses have evolved in a way that sometimes we just gotta pull out a blockage or irritant. Our fingers fit well, and have the right texture and surfaces to get the job done.

Ever watched a lot of monkey and ape footage? We aren't the only monkey looking critters that do it. It's common as heck