U.S. Coast Guard Petty Officer 1st Class Tyler Sojka, an aviation survival technician assigned to Coast Guard Air Station Barbers Point in Kapolei, Hawaii, gives a hand signal to the Coast Guard MH-65 Dolphin helicopter flight mechanic during vertical surface training in Kaneohe Bay, Hawaii, Dec. 10, 2025. One of the common hand signals is the "thumbs up" to indicate readiness for hoist or readiness to continue operations. (U.S. Coast Guard photo by Petty Officer 2nd Class Tyler Robertson)