Things that make you go aaah thats familiar

Just like home - Falun dafa / Falun Gong handing out pamphlets on street corners.
Guys in internet cafe - 4 floors x 200 computers a floor playing Quake etc.
Homeless guy No1, wrapped up in blanket laying on street with two long thick bits of cardboard shoved up each nostril.
Homeless guy No2, wrapped up in blanket laying on street with elaborate wire self constructed aerial / helmet

Talking and geeking around with Prof Chen in Japanese cafe at lunch time - he whips out PDA to show me how he can access a patient's progress in hospital from PDA, then he shows me his new bluetooth earphone mic, 2 X mobile phones he carries at all times then reaches into briefcase and pulls out new sub notebook and hooks up to net wireless and video cam on notebook showing me how he VPN into webby EHR at hospital and can video conference from laptop in cafe. He also has a screen in car with web access and GPS map of city etc and car prgress through streets plus when backing into a parking space the screen uses a video cam at back of car to show other cars etc. aaaahhhh how wonderful