Dale Carnegie

“You can make more friends in two months by becoming genuinely interested in other people than you can in two years by trying to get other people interested in you.”

Here is Dale Carnegie’s Wikipedia

There is nothing more true than this quote. Making friends is about being friendly, it’s not about being cooler than everybody else.

To be interested in everybody, regardless of status makes you friends, whereas being interested in nobody other than yourself and how well you’re doing, makes you lonely. In my opinion of course.

For example, a small thing which ticks-me-off is not RSVPing to an event. I am no saint; I am guilty of occasionally being one of these people, and for that, I am sorry, but please do not sit in the unresponsive column of people who could not be bothered clicking 'going,' or 'can't go,' regardless of the fact the host has asked you to. Just respond, there is no harm in doing so. You are making someone's life easier to organise, and the next time you see the person, they won’t be holding a subtle grudge.