Final answer:
When responding to the command 'cover,' you should place your hat on your head with both hands and salute.
Step-by-step explanation:
When responding to the command 'cover,' you should place your hat on your head with both hands and salute. Saluting is a standard military gesture of respect and is performed by placing the right hand palm down on the brim of the hat, fingers extended and joined, and the thumb along the hatband, touching the corner of the right eye. This action shows acknowledgment and obedience to the command.