Give multiple and opposing views equal respect and disdain at the same time. Treating a thought as your own, as an opinion "you hold" greatly holds you back from a great deal of valuable perspective. Of course you surely hold some world-view and gauge things from that position but try to cultivate more of these positions as if you were someone else.
Don't get your sense of self so wrapped up in all the thoughts and ideas that flit about in your brain. You will surely be a different person in 1, 5, 10, 20 years and may well have a completely different perspective then.
There is very little original thought, mostly there is just repetition and re-contextualization of the same old stuff. That is not a bad thing but you should really divest yourself from being emotionally wrapped up in opinions (yours or others) and treat them as the conclusions of research papers with small sample sizes.
Now when you converse with someone, stop thinking about "your" response, and just listen, really listen to what they are saying and try to really understand where they are coming from so you can integrate that into your thinking.