Asklemmy

Cave paintings, since I'm an artist! 😃 Also probably building tools and things since I enjoy building stuff in general

Selling camping gear

Knapping flint while fishing. And shitting under a tree. I feel like my ancestors have more in common than I thought.

Dispensing elderly wisdom

Dying from allergies & asthma.

While still living, the tribe could deploy me as an animal detector: place me at the front of hunting parties, and the moment I start sneezing & wheezing, they know they've got prey nearby.

Mandatory I'd have died more than once, but I suspect I would have been good at mental things like tracking and storytelling. I'd probably suck at everything else, too.

Honestly if I had my current level of knowledge, probably hygene. Teach them to make soap (animal fat and a source of base like ash), wash their hands, keep poop away from potable water sources, stuff like that.

Remember, it literally took until Victorian times to figure out that washing your hands prevents disease.

Also, math. Teach them how to do basic arithmetic, how to use a unit of measurement to figure out how big something is, stuff we'd learn in elementary school but weren't rigorously developed until the Ancient Greek age.

Being dead

Sleeping and eating

Sloth simulator