USDJPY is currently consolidating within a horizontal range. Taking into consideration the fact, that the pair is trading in a long-term bullish trend, probabilities are high that the market will resume the growth soon.
Your confirmation will be a bullish breakout - a daily candle close above 146.6 - the upper boundary of the range.
A bullish continuation will be expected to 148.0 level then.
Alternatively, remember that the price may also drop from the underlined blue resistance and keep consolidating.