In general I'd say I try to find things in common with folks I talk to. Conversations and relationships tend to go much better when there is common ground.

I would also like to say I think most people have more things in common than they have as differences. I believe this is thinking from a mostly objective and physical standpoint.

Obvious Realities
Don't most of us want to eat every day, most of us depend on oxygen to breathe, most of us are covered with skin and have two eyes and lots of similar body parts inside and out. Each person's DNA is remarkably similar to each others scientists say; they add our DNA and various other species are also remarkably similar.

I could go on with similarities but instead I will stop and hope I've made my point correctly and succinctly.

One Big Happy Family?
However, obviously humans don't act as one big happy family for some reason! Um, reasons.

For the time being I'm not going to go off on a tangent. That's a whole other post, aaa, at least one more post. :-) So, even though I voted the top vote, I do both, I do spend some time trying to figure out why there are significant differences in what people believe, think, what they consider valuable, how they act towards each other, etc...

But most of the time I try to learn our similarities. Or at least that's what I like to believe! :-)