How to CLAIM USERNAME in PUSH IT! app?

hey everyone so here is this new viral app which is called push it um so it's not available everywhere but you can already climb your username here in the top part and then see friends which is where you can add friends can you get push it and follow me so that's you can just add uh like send a message via your favorite social media apps to your friends and that's that's about it so that's how it might work yeah so that's the idea