I met my best friend at a coffee shop. I spilled my coffee, and she helped me clean up. We started chatting and have been inseparable ever since.
One of the best stories I have is when I met my partner at a music festival. We were both drawn to the same stage and ended up sharing our love for the band. We exchanged numbers and the rest is history.
I met a really interesting person on a train journey. We got talking about our travel experiences and discovered we had visited many of the same places. It was a serendipitous encounter that led to a lasting friendship.