So if you're going round say a left hand bend and look down at the handle-bars, they'll be angled to the right?.
No.
To initiate a left turn, you push on the left handlebar.
The wheel is rotating forwards and its momentum wants to keep it going in the same direction, but when you push on the handlebar, the gyroscopic effect causes it to "twist" to the left, this is transmitted through the forks to the rest of the bike, making it lean over.
Because the tyres have a round profile, the side on the inside of the turn is shorter than that on the outside of the turn, this causes the bike to turn to the left (if you put a plastic vending machine cup on its side and give it a push, it will roll in an arc for the same reason) *
So once the bike is leant over, it will tend to travel in a curve and it will keep travelling in the same curve provided nothing else changes.
If you push more to the left, the bike will lean in further. If you increase the power, the bike will straighten up and you'd need to countersteer and lean more to keep the bike turning on the same arc.
If you apply the front brake, the bike will want to sit up because its momentum is trying to go forward, but there's a force pushing backwards that is "inside" of the centre of gravity pushing it outwards.
If you throttle off or use the rear brake, it will want to turn in more because this time the force is "behind" the centre of gravity, pulling it inwards.
The thing about countersteering, as mentioned before, is that you do it automatically without realising it, but the trick is to be able to do it consciously in an emergency situation, eg if you overcook a bend and grab a handful of front brake, you're going to go straight on, but if you push on the inside handlebar and look where you want to go, the bike will lean further and you'll be more likely to get away with it!
* This is also why "darksiding" (using car tyres on the rear of a bike) is really stupid, because they don't have the rounded profile. Great if you're on straight American roads with no twisty bits, but pointless if you want to steer through bends!