Dominant hand/eye

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Can you make fire by flintknapping aswell, or is that just for tools?

Using flint to make sparks (like a flintlock musket) usually requires the flint to strike metal, I don't think it generally works stone on stone... Although as some stone can contain particles or nodules of metallic substances like pyrites, you could get lucky, with the right sort of stones.

I'll try and compile the left/right info later, although not everyone has answered the drawing question... I just have a vague idea about a theory to do with cavepaintings...