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On a purely technical level, all you need to do is setup a witness node and call the update_witness operation to declare yourself a witness. There is a lot more to it in order to do it 'well' though. I have a guide here: https://steemit.com/witness-category/@timcliff/guide-to-being-a-good-witness

Thank sir,,,
I have made a lot of writing but the award hasn't been there yet, but I keep trying to get better ,,