Follow these steps

1. Observe infant become too fatigued to finish bottle.
2. During next bottle feeding, watch for signs that infant is beginning to become fatigued (slowing down intake, turning head away from bottle, suckling without taking in any liquid).
3. Tip bottle down or to side to break the seal.
4. Allow infant to continue to suckle, without taking liquid in.
5. Count to 3.
6. Tip bottle back to neutral position to allow infant to create a seal around nipple and continue to feed.
7. Allow infant to feed again until signs of fatigue are observed.
8. Repeat the cycle.