How you deal with sudden and unexpected reactions to food and drink such choking?

In the event of choking, it's crucial to remain calm and quickly assess the situation. Encourage the person to cough forcefully if they can, as this may dislodge the obstruction. If they cannot cough or breathe, perform the Heimlich maneuver or back blows, depending on their age and size. Always seek medical assistance if the situation doesn't resolve quickly.