When price returns to the buy zone indicated on the chart look to go long. Price will return here at some point to address unfilled orders at the demand area. Look at the green bar at the left of the demand zone represented by the blue arrow. Notice how the green bar left the demand area. A good upsurge in price. Price rises like that because of unfilled orders. You will see this set up often on charts. When price returns to the buy zone and breaks through, that will also present a buying opportunity at some point. If price does not break through the buy zone that will be a possible opportunity to go long. You judge and plan your trade accordingly.