5. Use lots of cuddling by the person feeding the baby.
6. Some babies take a bottle better in their favourite breastfeeding position; others do better in a totally different position. Try propping the baby in your lap with the baby's back to your chest. The baby will see the room while drinking from the bottle (don't forget eye contact later). Or prop the baby on your slanted forelegs, like in an infant seat, and give the bottle while looking at him.
7. It may be best not to try to give a reluctant baby a bottle when he's gone a long time between feedings and very hungry. Anticipate.
8. Try to feed while moving rhythmically, calming the baby and distracting him from the different nipple.
9. If all else fails, try doing without a rubber or silicone nipple. For a tiny infant, alternative choices include an eyedropper, spoon, periodontal syringe, medicine spoon, special cup for infant feeding, tiny paper cup (the kind given out to hold condiments in fast-food restaurants), training cup or a regular cup.
To cup feed, place the rim of the cup on baby's lower lip and tilt the cup until the milk approaches the baby's lip. The baby's tongue will explore and find the liquid. On the first few attempts, this may take a few minutes. He will then lap or sip the milk. Do NOT pour the milk into the baby's mouth. Keep the level constantly by his lower lip and allow the baby to rest and pause while drinking, but do not remove the cup. When the baby has finished, he will let you know by turning his head away, or by other obvious cues.
Babies who can sit up may prefer to feed themselves (well supervised) from a regular cup or a covered "sippy cup."
Hope one of these works for you!