That doesn't mesh with my experience. Someone with social skills will usually ask me to clarify, or say "hmm, that's an interesting question" then give a really interesting answer.

If they don't have anything they really love (or it's a socially unacceptable answer, like one of the ones I gave) then they'll deflect gracefully, at which point I'll talk for a bit more then end the conversation.

One's without social skills who have something they love will often give a short answer, and then I'll have to ask a few more probing questions or relate it to what I love before they really start to open up about it.

Ones without social skills who don't have anything they love will say so, and again I'll talk for a bit more then end the conversation.