Yeah, I know that there are tons of "Who's better at lying: boys or girls?" routines. I'd just like to share to you guys the conversation that I had with this girl:

11/19/12, 9:12 AM
Background: Opened an Asian girl at bus stop. She was alone. This is gonna be easy!!
Conversation time: 1m 33s

Me: [Opening over shoulder] "Hey. Are you taking psychology by any chance?"
Her: "Yes."
Me: "You are?"
Her: "Yeah."
Me: "Okay, so ... my psych professor asked us that ... who's better at lying, girls or boys? And ... I was just wondering ... what do you think?"
Her: "Who's better at what?"
Me: "Lying."
Her: "Lying?"
Me: "Mmmhmm."
Her: "I think it's girls."
Me: "Girls?"
Her: "Yeah."
Me: [Giving her a suspicious look] "Are ... you lying to me right now?"
Her: "No!" [Laughs]
Me: [Laughs]
Her: "I don't know, I just feel like it's part of a good answer."
Me: "That it's a wha?"
Her: "I think that's probably, like, more probable answer."
Me: "Like, why do you think that girls are...?"
Her: "Why?"
Me: "Yeah."
Her: "I don't know. They're usually better at it."
Me: "You can't say that!" [Laughs]
Her: [Laughs] "I don't know! I'm not sure."
Me: "Alright, well, ummm, my professor said that the reason girls are better at lying is because that they can read body language."
Her: "Oh, so it is the girls!"
Me: "Yeah."
Her: "Oh, okay."
Me: "Mmmhmm. Yeah."
Her: [Laughs]
Me: "Could you tell if I'm lying right now?"
Her: "Not really."
Me: "Like, what if I didn't have psychology?"
Her: "Why would you do that?!" [Laughs]
Me: [Laughs]
Her: "Why would you do something like that?" [Laughs]
Me: "Because boys are better at lying!" [Laughs]
Her: "Wait, you are?"
Me: "Am ... am I?"
Her: "Wait, what!?" [Laughs]
Me: [Laughs] "You're confusing me! I'm scared!"
Her: [Laughs]
[College bus comes into view]
Me: "Is this your bus?"
Her: "I think so."
Me: "What, is this the F? EE?"
Her: "Yeah, yeah."
Me: "Alright. Well, thanks for helping me out."
Her: "Thanks! Sure."

If the bus had come at a later time, I would've done Style's "5 Lies" routine or do a magic trick that relates to the whole lying agenda - to truly see who's better at lying. It doesn't matter if the girl takes psychology or not; you're still leading her down the same path.

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"I've learned it's important not to limit yourself. You can do whatever you really love to do, no matter what it is." - Ryan Gosling

this shit is so gay... learn some real game

I still think if you are going to use that routine then you should mention that guys are better liars because women condition/teach men to lie. Whenever you tell a woman something truthful that she doesn't want to hear she'll hold against you forever because women don't forget things.

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“Nothing is impossible, the word itself says 'I'm possible'!” ~Audrey Hepburn

So what could've you done better?

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"I've learned it's important not to limit yourself. You can do whatever you really love to do, no matter what it is." - Ryan Gosling