During the breathing task for infants, you should position your mouth over both the infant's mouth and nose to form a sealed airtight seal. Then, give gentle breaths that are enough to make the infant’s chest rise, taking care to be gentle and avoid over-inflating the lungs. The breaths should last about 1 to 1.5 seconds each. It’s important to ensure the infant's airway is clear and the head is tilted slightly back to open the airway. Continue giving breaths at a rate aligned with rescue breathing procedures, typically 1 breath every 3-5 seconds if the infant is not breathing. Monitor the infant’s chest for visible rise and fall with each breath. If the chest does not rise, reposition the head and try again. These steps are essential to effectively deliver oxygen during infant rescue breathing or CPR.