Of course admire them and tell her how beautiful she looks but TEASE her by going back to kissing her belly, shoulders, arms, and everywhere BUT her failures.
Bridal attendants are chosen from your close friends and family members, including any sisters belonging to the groom. https://Www.keirikaikei-support.net/2018/08/13/%E8%B2%A1%E5%8B%99%E8%AB%B8%E8%A1%A8%E5%88%86%E6%9E%90%E3%81%8B%E3%82%89%E8%A6%8B%E3%81%88%E3%82%8B%E3%82%82%E3%81%AE/