1. Become genuinely interested in other people.
You can make more friends in two months by being interested in them, than in two years by making them interested in you. The only way to make quality, lasting friendship is to learn to be genuinely interested in them and their interests.
There is a study named "You’re like me and I like you" - Adam Hampton, Amanda Fisher Boyd, and Susan Sprecher concludes why similarity can increase liking, because, psychological reasons like consensual validation, cognitive evaluation, certainty of being liked, fun and enjoyment interactions, Self-expansion opportunity.
Seriously, just a few sincere question is acceptable. For example, "What series are you watching? Is it fun? Why... because its plot or actors? OK I'll see it, let's talk soon after. - this is much better than "Did you have lunch?"