It feels like little flutters at first and they get stronger as the baby grows.
Or it can feel like your stomach tightening in just one spot for a few seconds. But once they get stronger you won't be able to mistake them for anything else.
I felt my baby turn first and it felt like stirring a bowl of creamy mashed potatoes. Lol the first kick felt like a very light single tap on the inside. Now that she's stronger it feels like very how is described in the movie baby mama. Like you ate a meatball sandwich and the meatballs were kicking you. Lol I feel her a lot right below my belly button in the little pooch.