What is Twitter??? - The Kevin Spacey edition...

Here is the funny video of actor Kevin Spacey explaining what Twitter is all about to the "most cheapest of the lot" late night hosts, David Letterman. This David guy doesn't know what twitter is all about and he is being educated by Kevin in the most possibly hilarious way. Of course he did not completely do the training stuff but nevertheless a few grins were generated in the process.

Via Makeuseof