Jesus's positive commands ("do this") are consistently aimed at the heart rather than specific outward behaviors. What matters is not the specifics of the good things you do, but the degree to which you're loving God and loving your neighbor from your heart in those actions.

Hence when he saw a poor widow giving only 2 copper coins to the temple treasury (about 1/64 of a day's wages), he said she had given more than all the others, because she had given all she had to live on. My interpretation is that he said this because she was showing a heart that was fully given to God and trusting him completely to provide.