polishing the blade....

for polish the blade.... could i use

1) the palm of my hand?
2) black paste on the canvas strop?
3)black paste on leather strop?

thanks

Don't do any treatment of your blade with your hand unless you like getting stitches :eek:
I am assuming you want to put an even finer edge onto the blade. In that case you need another strop that you will treat with an abrasive.