how does it feel when you baby kicks you ?

I'm just wondering how it fells when your baby kicks . I'm 21w & 6d pregnant. I know when my baby girl is moving because she stay pressing down on my bladdder and one side of my stomach is always harder then the other and I feel her move . But idk about the kicking part I feel like a "Pop" sound like when a popcorn is popping or something Idk how to explain it but I feel like she's kind of kicking me a little its just not a strong kick, when she does that I tap on my stomach and she does it again but idk if it's movements or if she's kicking .