how to know when elf bar is empty

Checking the Elf Bar is quite simple! All you need to do is take a look at the Elf Bar sign located at the top of the screen. The sign will indicate whether the Elf Bar is empty or full. If the sign says "Empty," then the Elf Bar is empty, and you'll need to fill it up by completing more tasks and earning more points. If the sign says "Full," then the Elf Bar is full, and you'll be able to collect your reward!