Inverse head and shoulders may be forming on FB. I'll look for a price move through the neckline with a Stop Buy to pick up a long position.
For the more conservative you can wait for a close above the neckline before placing your buy. Next level up in being more confident is a confirmation candle thereafter.
I'll place my stop loss just below the neckline - 1 or 2 ATR - to keep my risk under control.