[stylist] Using Names of People You Know When Writing

[Vejas Vasiliauskas]

Hi,
One of my friends once told me that it violates copyright to  use the names of people you know in your writing, so it would not be legal if I wanted to write a story with characters named Bridgit, Chris, Jackie and Lynda, for example. Do you know  if this is true?
I know that if I actually wanted to write about a writing group similar to Stylist and have characters similar to yours, I would change the names.
Vejas