(non-native english speaker, be kind) I'm not even a good code reviewer but I think I can share some insights: 1 - First of all remember these two things: "The

(non-native english speaker, be kind) I'm not even a good code reviewer but I think I can share some insights: 1 - First of all remember these two things: "There is no perfect code" and "There is a human, who doesn't know everything, on the other side". 2 - Understand the scope of the Code. What is this piece trying to achieve? 3 - Read. Calmly. 4 - Read. Calmly. Again. Reading code is hard and takes practice. 5 - If you think something could be done better but it is not required, open the discussion, not everything is a 'change request'. 6 - If you don't understand something, ask. 7 - It's a team play. 8 - Praise what needs to be praised. 9 - Read the tests, for god sake. Try to think test cases that the PR didn't cover. 10 - Understand the moment that the project is. Sometimes some changes are too big for this review. If this is the case, could it be done later? I know these are pretty simple insights, and no real technique, but they are often forgotten :/