I've never been pleased with the reactions I've gotten from spectators. It's always been more of a "meh" moment than a "WOW!" moment. It wasn't until I started seeing myself on film more often that I really figured it out: I was rushing things.
As soon as I'd completed the effect, I'd stand there for a brief moment and then say something like, "Alright, moving on" without giving my audience a chance to react. In my mind, it made sense. "I've gotten that one out of the way--my job here is done. Let's continue." Unfortunately, that's not the way the spectators think. Instead the spectators have just seen something absolutely impossible. I just named five consecutive randomly-selected playing cards without even touching the deck. I've got to be psychic, right? As I'm continuing with the next effect in my set, the spectators are still working out how the preceding effect could be possible. Overall, my eagerness to move on (which I was previously unaware of) was proving to be detrimental to the reactions I'd been getting from my audience.
The solution? Shut the &@#$ Up! There's a little-known principle that you learn (or that you SHOULD learn) while training to be a teacher: the Eleven Second Rule. The rule states that, if you legitimately want your class to answer a question or ask one of their own, you need to wait at least eleven seconds to elicit a response. The reason being, of course, that your students (or your audience, in our case) would have to turn inward to come up with the desired feedback.
Same thing goes when performing. This eleven seconds (not a set value--just a guideline from the Education community) can be passed with an applause cue (another important skill I'm trying to develop), a few moments of silence, or even a few moments of shocked silence, followed by an applause cue! You see it all the time in L&L videos and the like. (By the way--has anyone else noticed that EVERY L&L video has the same audience. I personally thing Janell is cuuuute

Watching my live performances on video, I came quickly to the realization that I was waiting on average two or three seconds before moving on and rarely eliciting a round of applause. It seems so much longer when you're standing up there yourself after just completing an effect than it does from an audience member's perspective. I've grown to embrace the Eleven Second Rule (really the "Eleven Second Guideline"), as well as the line, "Give ______ a round of applause." It's less pretantious than expecting a round of applause or begging for one, and it achieves the desired result.
Employ this "Shut the &@#$ Up" tactic and you'll quickly find your performances becoming more memorable, undoubtedly leading to better audience reactions, longer retention and recognition of your name and persona, and, inevitably, more bookings. I've not had sufficient time to test that last claim empirically, so it's just speculation. If I remember, I'll keep you updated
