Real quick – don’t bluff too much in an interview.  If you can’t honestly say you’ve done something in the past – and back it up with examples – then tell the truth.  People can see right through evasive answers and broad generalizations.  Redirects are okay – “No, I haven’t picked up Ruby yet, but I am a quick study.  When I took my job with Acme Falling Anvils, they had just converted over to Java.  I was a C++ guy/girl up until then, but within three months I was leading classes fot the other engineers on Java.”

Don’t say yes to everything, unless you actually can do it all.  It’s obvious, and a turn off.