Here's a tip from a professional blagger: Takes at least two people - bring a bigass camera on your friend's shoulder, and a bigass spotlight. The other guy should be the "host" "narrating" the entire event of the party to the camera (the camera doesn't even have to be on)
. The "host" should be well-dressed, while the others like average joes (jeans and t-shirt and baseball caps, the idea here is trying to look like cameramen and techies)
Got within 2 meters of Ilse de Lange once. Told her we were Beijing TV and how she was a hit in Shanghai and Beijing and stuff - she bought it too. Sucker.