tough question. Who knows? but we can get some idea from our previous trading experienced and market movements.. such as bitcoin. look at bitcoin: you can see that, it hits 22 or some trading platform shows 23,000$ i got make my self clear that, it must be the highest level that hit while it hits 20K and i was almost correct that bull is over.
For someone who doesn't have much experience, I look at the price up and down to see if it's rising or falling. If during the bull run, after every day and hour, the coin's price line will go up or down slightly. When it ended, it was easy to spot because of the discrepancy on the chart.
This forum is giving an opportunity to everyone to earn in bitcoin by simply posting here, but you need to comply first before you become qualify participants here, aside from here you can go to bitcointalk.org but their rules was too differ from here, in short on bitcointalk their rules was very strict.
But in faucets the main problem is that there are some sites which they are not giving us the good amount of income and it require alot of time so in this way when we give that time to trading then it will give us good income than faucets.