I just started playing this game and the only issue i had was having no idea on how to open the menu on android. Sometimes i would just randomly tap around and get it to pop up every now and the, but for the most part i couldn't. Is there something specific I'm supposed to do?

Hello, I've just started playing this game, and i kept losing due to lack of healt and since i'm new here, i don't know where is the place to heal