Men Who Knit Promoting and inspiring the art of knitting amongst men.

Hi!  I'm a new(ish) knitter working on my first big project.  I've done a lot of toques, scarves, and mittens and am now starting my first sweater.  And by starting I mean I bought all the wool and everything and now I can't start.

 The pattern says to cast on 35 sts using the long-tail cast-on method (which I think is how I was taught anyway, so that's fine)  but then it says to work triple yarn-over cast-on for 40 more stitches.  And then later to drop certain yarn-overs. 

 I am confused!  How do I do a triple yarn-over and then how do I drop the yos?

Can anyone help me?