We taught our toddler that being noisy wakes up his infant sibling from naps, and we tie some of his favorite activities to his sibling's nap time. He quickly figured out how to stay quiet and started scolding us when we made noise. It's not perfect, but pretty good. Straight out of Dale Carnegie, you might say.
When I am repairing my car/bike, he comes with his bike (small plastic one) and gets under it and starts repairing act.
And he does it for long as I am repairing mine.
It's interesting that I don't live with him but he is copying my action but when I asked his mom if he helps with housework as he probably sees her doing a lot of housework, she said no.
I've no idea why getting under a bike is more appealing to him than doing stuff like cleaning with a mop and bucket.