two girls selling postcards on the street in siem reap. they ambush in pairs so that if you buy a postcard from one of them you have to buy one from they other. their trick is to start a conversation by asking where you're from. then they'll go, "ohhhh! U.S.A. capitol washington DC, has 50 states, hawaii and alaska, president george bush.....etc." then you have to buy postcards to get them to stop rattling off trivial facts about the U.S.