But I presume that items are "demonstrated"? And that potential customers are encouraged to comment on them?
Not necessarily; it really depends on the atmosphere of the gathering.
Sometimes they're just neatly displayed on a table; sometimes one or more are powered on and passed around (much giggling usually ensues), but I've never heard anyone say, "Oh, I have one of these and I love it!" or "Hey, how does this thing work?"
And there are (in my experience) always innocuous products, like pretty lingerie, bubble bath and body wash, scented powder, candles, etc., so that no one ever knows whether Grace from Accounting ordered the double-pronged Scrabble kit, or if she ordered the manicure/pedicure gift set for her Auntie Fay's 90th birthday.