When your station allows it, it's smart for a DJ to give positive feedback to listeners on the air. Until recently, I'd forgotten that in 1996, I'd said when back announcing Joey DeFrancesco's version of "How Little We Know," "...I have to agree with the caller who said that he does sound a lot like a young (Frank) Sinatra there."
It's a polite way to second a listener's enthusiasm. Also, you never know when that positive local presence might keep a listener tuned in longer.
