Uncertain if the person in front of you is a techie masquerading as an investment banker or the real thing? Then I have the solution! Simply look at his cuffs. If he's got cuff links on, then he's not a techie but a real investment banker!
How do I know I hear you ask? Having just started at an investment bank and turned up fully suited for my first day, I was quite dismayed to find out how hard it is to type with cuff links on, they basically make it impossible to do any real computer work.
