This document describes various clinical tests used to evaluate vestibular function, including nystagmus grading, caloric testing, Dix-Hallpike maneuver, and Epley's particle repositioning maneuver. Nystagmus and its characteristics help localize vestibular lesions. Caloric testing assesses each ear's function by irrigating with warm and cold water. Dix-Hallpike and Epley's maneuver are used to provoke nystagmus associated with BPPV. Epley's maneuver aims to reposition loose otoliths in the semicircular canals.