Those who responded with the advice to ask questions of others rather than feeling like you have to do a lot of talking are spot on.
It also helps if you are a naturally curious person. Larry King is not one of the world’s great intellects but he has enough insight to realize that his biggest strength is his omnivorous curiosity. He has remarked about this often when people have asked him about his success.
The same applies to many other successful folks whether or not they are “professional” interviewers like Carson, Barbara Walters, Charlie Rose, etc.
But you really do need to be an active listener rather than just peppering someone with one question after another in a machine-gun style. Actually listen to what they’re saying rather than just having your mind on your next question or a joke you want to tell. That never fails to come off as artificial and people will pick up on it.
Also try to ease into asking more open-ended type of questions ( those which can’t be answered by a simple yes or no or biographical fact about themselves.
These are fine for the beginning to get to know someone a little better ( which college, how many kids, where lived while growing up, etc) initially.
But to sustain a conversation so it doesn’t run out of gas, you need questions geared more to their opinions on various topics.
You don’t really need to give your opinions unless asked. Just pick about half a dozen or more thought-provoking topics ahead of time and jot them down on a 3X5 card ahead of time. Just don’t let anyone see you referring to them as that also comes off as fakey. (Take a brief bathroom or fresh air break to do it if necessary. )
People are flattered to have someone consult them for their opinions or advice and will most likely take little notice if you don’t have much to say.
Just make sure you actually listen to them and you should do fine.
Even if you don’t normally watch them, try to spend a little time studying the pros.
Obviously the longer format ones like the hour shows of Larry King and Charlie Rose are better since they aren’t having to wrap everything up in five mins.
But even John Stewart is good. He really listens to people’s replies to his questions. Even tho a comedian who usually wants to get a laugh, he actively pays attention to what the guest is really saying. He’s quite good at this. Watch his technique. He’s skilled enough at it that it doesn’t appear that there’s a technique at all.
If you have willing and understanding family or friends, practice on them.
After awhile, you’ll find it coming more and more naturally to you.