Pull requests (PRs) are a fundamental tool for developers using GitHub, allowing them to propose changes to a codebase and facilitating collaborative code reviews. While PRs aim to improve team communication and code quality, poorly crafted ones can lead to frustrations, slowdowns, and potential bugs. Common mistakes include overly large PRs, vague titles, lack of context or issue links, and ignoring failing checks. To enhance the process, best practices suggest keeping PRs focused on a single task, providing clear titles and descriptions, using PR templates, testing thoroughly before submission, and choosing the right reviewers. Additionally, staying open to feedback, mentioning edge cases, and automating repetitive tasks can streamline the review process. A well-prepared PR not only speeds up reviews and reduces bugs but also builds team trust and helps new team members understand the project better, ultimately making the code review process more enjoyable and collaborative.