When I first started photography, I was always convinced that my subjects have to be interesting, for me to interest people. If my model or topic is boring, of course my photos will turn out uninspiring and boring, right?
I had that kind of mindset for a long time, always seeking for more interesting locations, more interesting props, more interesting individuals. But not everything is interesting everyday. It was tiring and unmotivating as I struggled for interesting content.
Just so happens on one weekend morning I was still snugly wrapped up on my bed, grabbing my camera which was just right beside on my table, I took a photo of my watch, still in my half-groggy state. At that moment I just found the watch hands at an interesting position, with nice morning sun shining on it. Nevermind if it wasn't focused properly, I just took it for fun.
I posted it up without a thought, captioning it along the lines of "Still procrastinating(?)". Within a few hours, it garnered over a few thousand likes. I was flabbergasted.
From there onwards, I came to a realization that it really isn't if your subjects is interesting or not. You, the photographer, is the one that makes your subject INTERESTING. It can be a dull old apple or a boring empty street - you can make it fascinating all the same.
Over time I believe you'll begin to see what can catch people's eyes. Just keep shooting, with it comes along the experience and expertise required to take those shots.