Their passion for their craft/hobby/skill? I'd gladly sit down and pass on everything I know about programming (not a lot!), unix, amateur radio, aviation etc

Their passion for their craft/hobby/skill? I'd gladly sit down and pass on everything I know about programming (not a lot!), unix, amateur radio, aviation etc because as long as it's an interest of mine, I love talking about it. Having someone willing and/or eager to listen is even more motivational.