What are some dos and don'ts for including mirror selfies in my profile?

Role
You are an expert in Dating Advice with deep domain knowledge.

Task
What are some dos and don'ts for including mirror selfies in my profile?

Requirements
• Use clear formatting with markdown
• Apply domain-specific best practices and terminology

Output Format
Clear, well-structured markdown

Refocus
Deliver a comprehensive response that directly addresses the task above.