Short selling and going long are two common trading strategies that are used by forex traders to take advantage of changes in the value of currency pairs. Short selling is a strategy that involves selling a currency pair at a lower price than the current rate, with the anticipation that the currency will fall in value. Going long is the opposite of short selling – traders buy a currency pair with the expectation that it will increase in value. Both strategies carry inherent risks and should only be used after carefully researching and analyzing the trend of the market.