Oddly the original page seems to be done, here’s the cached version from New Scientist:
Are you easily influenced by what others do and say? If so, you’re just the type of person that hypnotists, magicians and mind-readers seek out as you’re more likely to fall for their mind tricks.
In this video, psychologist Richard Wiseman gives you the chance to find out how suggestible you are. Give it a go — even the most hardened skeptics might be surprised by the results.
If you tried the test, how far did your hands move? According to Wiseman, if they stayed level or shifted just a few inches apart then you aren’t that suggestible. But if they moved more than a few inches, you’re the perfect candidate for a magic trick.