This document provides filing tips for Form I-765 (Optional Practical Training), Form I-539, and student reinstatement. It addresses ensuring the correct eligibility category is selected, obtaining a DSO recommendation, including evidence of student status and program completion, signing forms, including copies of previous documentation, providing qualifying degree evidence for STEM extensions, and addressing name and address changes. Tips are also given for M-1 extensions, transfers, and F-1 and M-1 reinstatements.