Presents the family will exchange are wrapped and placed near the tree, including presents to be given to pets. Friends exchange wrapped presents and tell each other not to open presents before Christmas. Grandparents, aunts and uncles, cousins, siblings and occasionally guests from out of town are entertained in the home or else visited. Wrapped presents are most commonly opened on the morning of Christmas Day; however, some families choose to open all or some of their presents on Christmas Eve, depending on evolving family traditions, logistics, and the age of the children involved; for example, adults might open their presents on Christmas Eve and minor children on Christmas morning, or everyone might open their gifts on Christmas morning. Others follow the tradition of opening family-exchanged gifts on Christmas Eve night, followed by opening of the presents Santa brought on Christmas morning. Children are normally allowed to play with their new toys and games afterwards.