The EMA moving average is the most direct reference for distinguishing between 'Left-side and Right-side Trading'.

When the price is above the moving average: going long is the right side, going short is the left side;

When the price is below the moving average: going short is the right side, going long is the left side.

Only trade right-side orders around support and resistance, without predicting market turning points, which can also avoid 80% of unnecessary emotional fluctuations and trading internal consumption.