I check the commit messages to make sure i didnt use my personal git credentials (as i sometimes do), i comb through the git diff to make sure the changes are all what theyre supposed to be. i avoid whitespace or stylistic changes because they distract from the main point. I run git diff and git status maybe 10 times befire i submit a PR

my coworkers, from what i can tell, are much more incorrectly confident in the quality of their PRs