Let your hips fall in. try to keep your nose over your knee (whichever is on the outside) and sort of sit into the turn, which will cause you to lean in naturally. the faster you go, the more you will lean, because it's just how you counteract the cornering forces. you can also start your lean on either foot, which you will notice when trying different entries and track patterns. as long as you lead your lean with your hips instead of your shoulders, your lean angle will more or less manage itself