how can we know where is institutional trader still unfill orders place by looking chart?

 

in supply demand system . we trade by looking big whale fill order area.

sometime they still need to fill their orders because previous orders not fullfill by liquidity requirement

So when price touch again supply or demand area ,trader try to buy sell

Question is how can know this unfill area because they will surely fill their orders in next zone

How chart/candle show this pattern