How to use Forex signals?
Usually in a forex signal service, the programmer creates a set of technical indicators and rules then the program runs to those specifications. When certain conditions are matched, the algorithm advises the programmer accordingly: now is a good time to enter the market and buy/sell XYZ currencies. But this is an oversimplification as there are many more criteria to keep in mind when trading.
Ultimately the decision is up to the trader, meaning you. The signals can reach subscribers via several methods. But the timing is essential, so they are usually sent via email, website, SMS, RSS, tweet or other similarly quick methods.