In the tasks where you are being led, muck in and if it's all going wrong then suggest something.
If you're leading, keep your voice up, stand back and see how things are going, encourage your team, keep your voice up, muck in and keep your voice up. If one of your team suggest something, then thank them for it but remember you are leading and you have to remain in charge.
They will probably go wrong, you will get wet but try not to get stressed and keep you head.
Best of luck, let us know how you get on...
One last thing...KEEP YOUR VOICE UP