I am sure you understand the word Auction so for e.g. lets just say you want to sell your car in an auction proess...so the bidder says 20,000$....someone raises their hand and says 25k and another one says 35k---40k and so on....so lets just assume price is now at 65k....now if you observed, price was at 20k moments ago and now at 65k...the prices have gone up but THERE WAS NOT A SINGLE TRANSACTION that took place between buyers and sellers (you) ...this is what fx trading is...The only difference is this process is in between the 17 or so TIER1 BANKS..now compare this with the process in the stock markets..for shares of APPLE to climb from 170$ to 171$, THERE IS A PHYSICAL/ELECTRONIC TRANSACTION...meaning there was a buyer who BOUGHT at 171...not the same like FX meaning no txn but prices climbed.... i am reluctant to use the word RIGGED.
So in a nutshell, you track the liquidity direction meaning which side of the price is it lesser and then look for trades near major levels....today i was helped by the BOE nad ECB announcements so you can see the pips earned on my account in the attached image