Description under site name on Google?

Chaan's Avatar, Join Date: Jan 2011
Newbie Member

I clicked on a few topics but they were above my level.

When searching on whatever on Google there will be results. Those results are presented as a site name (bold) and a description under it. What is this description called in web programming lingua and how do I fit it in my index page?
shabbir's Avatar, Join Date: Jul 2004
Go4Expert Founder
From the content of the page.
Chaan's Avatar, Join Date: Jan 2011
Newbie Member
Oh. Again, apologizing for my ignorance - I just found out that it is more complex than I thought!

There is apparently another way too!

Kinsey Schofield has managed to present herself already in the bold headline of the hit for her web site. UNDER this is, in smaller font, the content that Google draws from her page.

I don't know where to begin anymore. I thought I wanted just my sitename as the headline and a description under it but now I'm unsure what's best, her solution might be better.