Mentoring is a 1:1 relationship where you guide someone (typically junior) through skill development, career planning, and personal growth. You meet regularly, set goals, give feedback, challenge them, celebrate wins. Mentoring is more directive than coaching (you share expertise) but less directive than managing (you're not their boss, no power over decisions). The cycle: set goals → check progress → give feedback → help troubleshoot → celebrate → repeat. Over 6-12 months, mentees gain skills, confidence, and clarity on career direction.