Ho do I record with a nikon D3100?

Hi, I have got a nikon D3100 but I have got no idea how to record… So what button/whatever do I press to record?

Really sad to see someone so lazy to read their user manual
Lost the paperback? Download the pdf… Take time to read the basics

Tutorial, http://www.nikondigitutor.com/eng/d3100/

Lazy aren't you.