Hi!
If we look the graph of the GBP/JPY cross, we can see an obvious triangle, and it can be the clear signs of a bear-rally:
The RSI is a bit above 50, so it does not indicate danger, although it is not going down.
All in all my preferences:
a) For brave traders:
Short position (price 189,20-189,70), PROFIT: cca.188.40, STOP: cca. 189.85-189.90
b) For cautious traders my advice is:
Wait until the direction of RSI does not change!
Good luck!