Here are some alternatives to "Don't get in my face":
- "Stay out of my way."
- "Keep your distance."
- "Don't push it."
Here are alternatives in different tones:
Casual/Informal
- "Chill out and give me some space."
- "Ease up a bit."
- "Step back, will you?"
Polite/Formal
- "Please respect my personal space."
- "I'd appreciate it if you'd give me a little room."
- "Could you step back a bit, please?"
Firm/Assertive
- "Back off and respect my boundaries."
- "Please keep a respectful distance."
- "Don’t push your luck."
Each version adjusts the tone depending on how direct or polite you'd like to be.