I agree listening and asking questions is certainly a tangible way to improve relationships with Christians of other traditions. Christians of various backgrounds each come from a Church or a Christian tradition they were taught or are taught is the right form of Christianity. I am a member of a Church I grew up being taught is the one true Church on earth.
But, at the same time, though, I learn in my Church it is important we meet people where they are at and listen to others. More than that, I came to learn how important it is for me to ask questions of my faith as well. I came to discover I could learn from other Christian Churches and others of other Christian traditions. I discovered as well it is important I constantly question what I believe and why I believe what I believe.