dude, there are two types of joining:
1) You play forex by yourself- need a lot of concentrations and must knowledgeable
2) You play forex by using remiser as a medium..

To hire a remiser, make sure , he or she is certified person...
dont risk your money by selecting uncertified person.

Normally, forex tradsing company, will have 2 types of remiser:
1) Certified remiser (pass test)
2) Uncertified a.k.a admin assistant

The most important thing is this:
MAKE SURE THAT COMPANY HAS LICIENCE TO DO FOREX TRADING.

AND YOU MUST KNOW what currencies there are playing.

Normally, forex will play 4 types of currencies:
1) USD
2) GBP
3) YEN
4) CHF

The best pairing currencies are GBP-USD..but DEPEND ON FOREX EXCHANGE RATE.

To understand about increase or decrease of the forex, watch Bloomberg in ASTRO