What do we have in common? We all like cute crazy puppy dogs. And for now, that's all we need. We can enjoy a picture of a cute dog that's all wet from playing in a fountain, whose hair is sticking out ten ways from Tuesday like Dolly Parton after an 8 second bull ride.
Find one thing you have in common with a lot of your desired readers and talk about it. Honestly, sincerely, and in a pleasant voice. Just have a good time and you'll find some of your readers say, "Yeah, that was good."
People don't need to love you. But maybe they can like you, or respect you, or best of all, just find that you're kind of fun to be around.