What do you look at during a code review?

Hey everyone,

I'm a mid-level engineer on a team where most of the others are seniors. I need to start reviewing their code, and I’m not sure what I should be focusing on.

When you do a code review, what exactly do you look for? Is it more about the code style—like variable names, function length, clarity—or should I also be evaluating technical decisions, like whether the overall approach makes sense?

It’s especially tricky because I’m still relatively new to the team, so I don’t have full context on a lot of the files or systems yet. I’ve seen advice about how to write code that’s easy to review, but less about how to perform a good review, especially when reviewing someone more experienced than you.

Would really appreciate hearing how others approach this!