The best advice I can offer is to learn how to play with people and subtly lead them around to the idea that they should be excited and expectant about whatever's going to happen. Building a sense of anticipation and often confusion can set someone up for a big catharsis. In a way, this is kind of like working as a hypnotist; the most important thing you say isn't going to come out of your mouth.
Everything about you should suggest that you are knowledgeable, magical, and worthy of great praise and reactions: body language, demeanor, even clothing. All your handling should seem smooth and casual, as if you're doing a simple, logical task and have nothing to hide. If you create that reality out of non-verbal cues, people will accept it as if they had reasoned it out for themselves. Once you get someone to that point, where they think they believe something because they decided on it and not because of you, then you can get past the Critical Factor and bring in the element of surprise after the basis for the false reality is established. Blowing minds is more a social and psychological thing than it is a thing of finding the right effect and doing it perfectly. You have to learn how to engineer that moment of catharsis, and there is no trick I've seen that will do that for you or even help you with it very much. Do magic that you love and that looks magical to you, magic that you can get really excited about even if you know the method. The most important job an entertainer has is to have fun. If you're not having fun, your audience will know, and then they won't be having fun either.
Everything about you should suggest that you are knowledgeable, magical, and worthy of great praise and reactions: body language, demeanor, even clothing. All your handling should seem smooth and casual, as if you're doing a simple, logical task and have nothing to hide. If you create that reality out of non-verbal cues, people will accept it as if they had reasoned it out for themselves. Once you get someone to that point, where they think they believe something because they decided on it and not because of you, then you can get past the Critical Factor and bring in the element of surprise after the basis for the false reality is established. Blowing minds is more a social and psychological thing than it is a thing of finding the right effect and doing it perfectly. You have to learn how to engineer that moment of catharsis, and there is no trick I've seen that will do that for you or even help you with it very much. Do magic that you love and that looks magical to you, magic that you can get really excited about even if you know the method. The most important job an entertainer has is to have fun. If you're not having fun, your audience will know, and then they won't be having fun either.