I'll analyzed the NIL/USDT trading chart and here are some insights on potential buying points.

Key Observations:

1. Current Price: 0.631 USDT

2. Price Change: -15.17% (significant drop)

3. 24h Trading Range:

- High: 0.854 USDT

- Low: 0.599 USDT

Technical Analysis:

- The price has experienced a sharp decline from its 24-hour high of 0.854 to the current 0.631

- The trading volume is substantial (155.31M NIL, 112.34M USDT)

- RSI (Relative Strength Index) is at 37.028, which suggests the asset might be oversold

- The Order Book shows a slightly bullish sentiment with 63.61% buy orders vs 36.39% sell orders

Potential Buying Points:

1. Current Price (0.631): Could be a good entry point if you believe the price has bottomed out

2. Support Level: Consider buying around 0.599 (24h low) if the price continues to dip

3. Wait for Confirmation: Look for signs of price stabilization or a trend reversal before entering

Recommendation: Monitor the price closely and look for consolidation before making a decision.