There are a number of honors during the service which you can assign to family and friends.
*Generally, the family is allowed 4 aliyot (blessings before and after a specific Torah reading). One of the four aliyot will be for your child and there will be three more for family and/or friends.
*There are generally two Ark openings and closings available to honor friends and family (between one and four people for each.)
*The Gelilah helps to bind and dress the Torah with its cover and ornaments after the completion of the entire Torah reading.
This prayer can be chanted by the B-Mitzvah student, a younger sibling, cousin or a close friend. (This honor is optional.)
(*Participants for above honors with an asterisk are required to be Jewish.)