On the subject of handshakes, I recall an incident from almost 2 years ago. I was in Washington, DC for some work with USSOCOM. I met a particular desk officer from the Dept of State. It was clammy and one of the most limp wristed hand shake I've ever had. A handshake tells volumes about a person. I was always raised for a handshake to be firm but not crushing as that's confrontational. I've hand shook with some Easterners and their handshakes tend to be soft but I just take that as part of their non-confrontational cultures.
I think we tend to think a handshake should say something about a person. That limp wristed clammy handshake may be merely because that person had RSI of the wrist or elbow besides that desk officer could be shaking hands with a hundred people a day, not a pleasant thought if they are all 'firm'. Politicians have been schooled on how to make their handshakes look right because of this very thing of handshakes supposingly meaning something and look at them!