The Pound sterling briefly rose to highs of 1.2364 before retreating lower.
Price action is currently back near the price level of 1.2275. Given that this proved to be a resistance level, the retest will likely establish it as support.
A successful rebound off 1.2275 will confirm further upside in GBPUSD.
The next main target is at 1.2425 where resistance will most likely keep a lid on further gains.
For the moment, the reversal near 1.2275 is important. A close below this level will invalidate the bullish bias.