We weren't sure if this was just a regular shower. Is a gift expected?
Also one person already gave a gift, does she need to bring another?
Thanks for your question. A "sip and see" is a more casual type of baby shower that can be thrown as a full baby shower or an open house. If it is thrown as an open house, you give a time frame in which guests can come and enjoy the new baby and give well wishes. Guests can mingle with each other and enjoy the refreshments provided. When it is thrown as an open house, it can be thrown by the parents of the new baby or hosted by a friend or family member. Gifts are not required, but most guests bring a gift as a token of friendship.
If it is thrown as a Sip and See Baby Shower, it is a little more like a traditional baby shower, but with fewer games. Since it is an actual baby shower, there is a hostess involved. It is more casual and both the baby and the mom are the center of attention.
When sending out invitations, be careful on the wording to indicate whether it is just a "sip and see" or an actual "sip and see baby shower". The wording is important as it dictates from an open house to a more structured baby shower.
P.S. Although gifts are not mentioned on baby shower invites, guests know that it is considered rude to show up without a gift. If your friend already gave a gift to the mom to be she is not required to bring one, but might also choose bring something small just so she is showing up with something to the party.