At support · S1/S2
Bounce candidate. Buy with stop just below S2. Best confirmation: reversal candle + RVOL spike.
At resistance · R1/R2
Fade candidate. Watch for failure / rejection. Short with stop just above R2. Breakout = trade through.
Pivot break ± volume
Close beyond pivot on RVOL ≥1.5× = trade-through. New pivot becomes support/resistance for next move.