Fast rises and slow falls indicate accumulation. If the price of the coin is shooting up quickly but falls slowly, it’s likely that the market maker is quietly stocking up, preparing for another surge. Fast declines and slow rises signal selling. Conversely, if the price of the coin is plummeting quickly but crawls back up like a snail, it may mean the market maker is quietly selling off, and the market is about to turn bearish. Don't rush to sell when volume is high at the top; don’t hesitate to run when there's no volume. When at a high position, if trading volume is still surging, don’t rush; there may still be potential. But if the trading volume shrinks to a line, it’s time to withdraw; it can’t rise anymore. At the bottom, don’t act hastily when there's high volume; wait for continuous volume increase before taking action. When at the bottom, if trading volume suddenly spikes, don’t rush to buy; it could be a brief pause during a decline. If trading volume continues to steadily increase, then it’s worth considering entering the market.