Harold Pinter made a hell of a career out of people not saying things. The man used pauses so much that long silences in many a drama are now known as "Pinteresque." His style has been often imitated and occasionally mocked by other writers, but few have been able to capture his sense of satire and creeping dread. You can see where it all started with Little Green Pig Theatrical Concern's production of Pinter's second play, the short-lived but enthusiastically reviewed The Birthday Party. It's about ... actually, the plot doesn't make a whole hell of a lot of sense. There is a birthday party, but the subject is pretty insistent it isn't his birthday. Creepy stuff happens, some of it offstage. Performances begin Thursday at 8 p.m. with a $5 preview; Friday's opening-night show is a $25 fundraiser as part of Little Green Pig's sixth-anniversary celebration. —Zack SmithDaily at 8 pm except Sun, Nov 6, 2 pm, and Mon, Nov 7, no show.