Wikihow: Look after the sacrificial animal. Once the animal(s) has been bought, make sure you feed it properly, and allow it to have regular walks to keep it in good shape, especially if you have bought it early on before the Eid date. Don’t forget to feed and water it mainly. Also, nurture it. The main essence of Eid is to sacrifice what you love towards God’s (Allah’s) way. Hence the more attached you become to the animal, the more reward God will grant you.
Spend time with your animal. Also, clear enough space for the sacrifice (if it is being done at your house). Lastly, inform the butchers beforehand and do not sacrifice the animals in front of one another as it scares them.