On H1 chart, GBP/USD has been performing in favor of the bullish bias, as the recent polls favored for a possible "Bremain" option to be the winner this Thursday in the Referendum in UK. A bullish gap left at weekly opening hasn't filled yet. Eventually, the cable may find resistance around the 1.4730 level in order to pullback towards the 1.4464 at least. However, the bullish trend is very strong at this stage.
H1 chart's resistance levels: 1.4730 / 1.4806
H1 chart's support levels: 1.4597 / 1.4464
Trading recommendations for today: Based on the H1 chart, place buy (long) orders only if the GBP/USD pair breaks a bullish candlestick; the resistance level is at 1.4730, take profit is at 1.4806 and stop loss is at 1.4652.