just treat someone the way you want them to treat you, unless you were some kind of sick masokis. But here's several thing's you can do.
- Be a good listener, avoided using "I know that i know this" it's gonna make you as jackass.
- Be polite, to the old one, and carryng to the young one.
- Talk less do more. Avoided being a "much talk" person, there's no plus in there, unless you were a pure clown and can make a joke everytime.
- No Judging. Avoided being a judge person, nah that's a total A-hole.
- Be open minded, accept what other opinion, beside you can also tell them what inside your head.
that's several thing's you can done, hope that's gonna help.