1 BB will widen up
2 check candlestick for a strong reversal signal, if it happens
3 check stochastic, wait for the lines to cross and go down from 80 & above to sell or go up from 20 & below to buy
4 rsi should be dipping from 70 or above to sell or move up from 30 or below to buy
if the above conditions satisfy trend starting, wait for the next candlestick to confirm (going along the trend) buy now