As above.
It's something I've occasionally thought about doing but never have. I'm not talking about investing thousands as I haven't got it, but maybe a hundred here and there.
Where do you begin? Do you go on a hunch or do you learn in time what goes up and what comes down?
Is it something you can do from your armchair on the laptop or do you need to wear an expensive suit and shout down several phones all at once?