Getting to 4000 points daily.

I've been struggling to hit the 4000 point-goal that I've set for myself on a daily basis without having to workout. You might be thinking, "DUH!" But yes I've been trying to figure out if I can reach it with few small walks\ but the results just won't show. In December I only hit it once. I've captured the data on January as well:

I hit it 3 times on Jan 9-11 and those are the times when I did a lot of walking in the streets of Macau and  Hong Kong. The rest of the days are pretty normal. Back to the drawing board for me.