The best way to do it in a small way is to use a ''PAMM' account at someone like IFX (
www.cbfx.com)
You can get your friends to open their own account deposit money.
They can then sign a power of attorney giving you permission to trade the account. (which are grouped together for trading purposes)
This way you are not hling client money which removes pretty much all regulation.
The platform works well for one click you can trade for as many people as you want.
the broker will also calculate deduct your agreed profit share.
Good luck