some things would be!--- make sure electrical lights are switched off while not being used---of course the obvious---pick up trash around the neighborhood---like paper, smoking butts,cans and so forth--- if possible.
plant a flower or fruit, using a vase--- is ok.
wow!-- what a loaded question---things are relative---if i stay in my world i'm ok---war is mans nature-- even there was war in heaven--so i ask-- what chance do we have not to war?