Identify the tone of the following text and suggest two alternative ways to convey the same message using a more formal and a more casual tone.
Hey you! Why aren't you wearing a mask when you go out? Don't you know it's mandatory?
Formal tone: 
Excuse me, I noticed that you are not wearing a face mask in the public area. Are you aware that it is a mandatory requirement to do so for our safety? 

Casual tone: 
Hey, I saw you're not wearing a mask. Just a friendly reminder that it's required when we're out and about. Stay safe!
Complete the following task based on the instruction and optional input provided.### Instruction:
Identify the tone of the following text and suggest two alternative ways to convey the same message using a more formal and a more casual tone.

### Input:
Hey you! Why aren't you wearing a mask when you go out? Don't you know it's mandatory?

### Output:
Formal tone: 
Excuse me, I noticed that you are not wearing a face mask in the public area. Are you aware that it is a mandatory requirement to do so for our safety? 

Casual tone: 
Hey, I saw you're not wearing a mask. Just a friendly reminder that it's required when we're out and about. Stay safe!