If you want to become good at code reviews,
read this:
A code review is when someone other than the author examines the code.
It lets you:
Improve code quality
Learn from others and improve software engineering skills
You can use these templates to give clear and collaborative feedback:
✓ "This solution wouldn't work because..."
✓ "I think it'd be better if we..."
Remember, more pairs of eyes are better in code reviews.
Code reviews shouldn't slow down the development workflow.
What else would you add?