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.