A trending market is one in which price is generally moving in one direction.
Sure, price may go against the trend every now and then, but looking at the longer time frames would show that those were just retracements.
Trends are usually noted by “higher highs” and “higher lows” in an uptrend and “lower highs” and “lower lows” in a downtrend.
When trading a trend-based strategy, traders usually pick the major currencies as well as any other currency utilizing the dollar because these pairs tend to trend and be more liquid than other pairs.
Liquidity is important in trend-based strategies. The more liquid a currency pair, the more movement (a. k. a. volatility) we can expect.
The more movement a currency exhibits, the more opportunities there are for price to move strongly in one direction as opposed to bouncing around within small ranges.
Other than eyeballing price action, you can also make use of technical tools you have learned in previous sections to determine whether a currency pair is trending or not.