Spray on pet bedding, bandana, or even a little on your fingers and gently rub around muzzle, under chin, and top of chest.
For bonding rabbits, spray a little on a damp cloth or fingers and gently rub around their muzzles. This helps with scent swapping as well as calming, which in turn helps speed up the bonding process.
This same procedure can be used for bonding other pets such as dogs, cats, rodents, and horses.
Avoid spraying in the proximity of small mammals and birds as they have small lung capacity. Best to spray a little on a cloth and then place the cloth near them.