Hi Gavin,
Yes, good basics for psychology 101 and sales 101 well integrated.
Have to strongly disagree on the 'do something silly' though - you can certainly interrupt their pattern (NLP 101) without making yourself look like a goose.
The warning here is this - unless you already have a name that they know and trust, you don't want to make yourself look like an idiot... or they might just think you are one.
Stick with the W.I.I.F.M. - people are way more interested in them then they are you.
Paul Barrs