What to Consider in Demo Trading

It's a good idea to place at least 20 demo trades on a platform before trading actual money, just so you can master the specifics of order entry on each platform. A trader should never trade live unless he or she can confidently answer all of the following questions:

How do I place a limit order?
How do I set a stop?
Can I set a limit and a stop at the time of entry?
Are the spreads on the platform fixed or variable?
What is the lot size that I can trade (1,000 units, 10,000 units, 100,000 units)?
Can I mix and match the lot sizes?
Can I call the dealing room directly if my internet connection goes down?