Big Reaction by Andy Nyman by Alakazam Magic!Big Reaction is Andy Nymans take on a Roy Johnson effect. Andy has performed his killer version of this trick literally thousands of times and the reaction is always the same Huge. Big Reaction could well be one of the most commercial tricks ever created and it will get cheers and applause from your audience. Big Reaction is not only the perfect opener but also a great closer to your set. You can use it anytime anywhere. Works one on one, mix and