as the topic says. im a beginner and i plan on going out at the end of January to the mall to spend 4-6 hrs approaching girls using the PUA knowledge/material i have-learned since December 2010. but i also want to do this with a hidden camera and or microphone because i want to go back home and go over them and try to spot what techniques i performed and where i went learn. i want to learn from my mistakes quickly. sometimes when i watch myself recorded then i realize, "wow i shouldn't done/say that, or i should have done/say that." etc but in other stuff not PUA. so yeah this will help me a lot when i come home and review my performance

Buy one of those spy pen camera from ebay, it costs about 50$, work great and you can record up to 1.5hr