How do you deal with new people you meet that just give one word answers or show that they don't wanna continue the conversation by their body language?

I usually ask questions to get the ball rolling and try to "word associate" to continue the conversation. It's worked with plenty of people but I've never encountered a situation like this when talking to someone new.

I usually drop the conversation if they dont even try to continue the conversation after 2-3 times of trying to get them to open up by either asking questions about them or trying to make small talk

Any thoughts? Am I doing anything wrong?