Before carrying a passenger on your motorcycle, what should you do?

Carrying a passenger changes motorcycle handling significantly. Preparation: verify the motorcycle is designed for two-up riding (most are; some sport bikes are not really practical); ensure passenger has appropriate gear — helmet, jacket, gloves, boots; confirm the bike has passenger footrests and seat; brief the passenger on technique — hold the rider firmly around the waist or use grab handles; lean with the motorcycle in turns (passengers who lean opposite or stay vertical make the bike harder to control); do not move suddenly; mount and dismount only when the rider says it is safe. Adjust tire pressure (typically higher rear pressure for two-up) and rear suspension preload per the owner's manual. The motorcycle will feel different — slower acceleration, longer braking, different handling.