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

Talks to themselves a lot. Ranting and raving in the car pretending you're on the phone, talking to the air at home about recent events... nobody admits it though!

Well, "wanker" is pretty silly to use as an insult...

Shitting themselves in public. It doesn't happen often, maybe only a handful of times over your life. But it will happen at some point. You'll be at the urinal, or sat on a barstool, go for a cheeky fart, and feel a warm wetness you haven't felt since you were a baby. Then you run to a bathroom stall, see what you can salvage, and excuse yourself from the situation.

It'll happen to you at some point.

Picking their noses.

Lying to themselves. It happens, but it’s hard to own up to.

Urinating in the shower.

Using Q-tips in your ears!

Looking in the toilet before you flush.

And you should do it. The colour of your urine tells you how hydrated you are and so if you should be consuming more fluids (hydration isn't just water). The state of your feces can be an early warning system to potential issues even if it didn't feel off when you went.

Masturbates