It's easy! Just pick up your current read (or one of them!), open to a random page, and choose a couple of sentences on the page to post as a teaser. No spoilers please! Make sure to tell which book you pulled the quote from so others can check it out if they're interested.
Dread might as well have been scrawled on Jeff's face in red ink. "She's checked several times. He hasn't called home. What's going on, Jeff?"
Not This Time, Vicki Hinze, pg 61
I'm not very far along, but so far it's really good! If you like suspense, I think you'll enjoy Not This Time!