Consider the chart of the GBPUSD currency pair
Time D1
On the chart, you can see that the buyer has weakened.
If we compare the previous candles, then the renewal was stronger than the previous one.
At the moment, we see that purchases have resumed worse than the previous ones.
This, in turn, suggests that the buyer has weakened.
What does it give us?
The opportunity to enter short positions at the very beginning of a trend change.