1. Observe the price trend: when the futures price rises, the bulls (bulls) gain and the bears (bears) lose. At this time, if there is a lightening, it may be that the bulls take profits and take some profits. On the contrary, when futures prices fall, bears gain and bulls lose. At this time, if there is a lightening, it may be a short profit and reduce the risk of holding positions.

2. Analyze the changes of trading volume and positions: In futures trading, trading volume and positions are important indicators reflecting market activity. When the long position decreases, the trading volume may decrease and the position will decrease accordingly; When the short position decreases, the trading volume may increase and the position will decrease accordingly. By observing the changes of trading volume and positions, we can preliminarily judge the direction of lightening positions.

3. Pay attention to changes in market sentiment and fundamentals: The lightening behavior may be affected by changes in market sentiment and fundamentals. For example, when the market is optimistic about the future price trend, bulls may increase their positions and push up prices. On the contrary, when the market is pessimistic about the future price trend, bears may increase their positions and push the price down. By paying attention to the changes in market sentiment and fundamentals, we can judge the long and short direction of lightening positions.

4. Combined with technical analysis: Technical analysis can help investors judge market trends and price trends. When long positions decrease, there may be technical forms such as high position decline and top reversal; When short positions decrease, there may be technical forms such as low rebound and bottom reversal. Combined with technical analysis, we can more accurately judge the long and short direction of lightening positions.