Hi, if you're talking about copying other peoples trades, you'll need to join a broker which allows you to do such a thing. For example, eToro (broker) has the option for you to publish your trades publicly and an option to allow other people to copy your trades. As a result, there are some decent traders who are making a consistent profit who have enabled the option for others to copy their trades. Therefore, if you sign up with eToro, this will give you the option to automatically #copy# successful traders.
I'm sure there are other brokers who do such a thing; if anybody knows of any, please share.
I myself trade using EA's on Meta Trader 4 which, as you know trade a particular strategy automatically; and that works for me and I make consistent profit. I would say however that I use expert advisors on more of a semi-automated basis, where I tell the EA what direction to trade in, and turn it on and off according to how I feel the market is trading.
Does this help?