If your lil one is playing a role in the wedding, make sure she is well-versed on what will be expected of her during the big day and what will be going on around her. One of my friends' sons was the perfect ring bearer during a wedding last Summer — except they forgot to tell him the flower girl he'd walk down the aisle with would be throwing petals. The very responsible boy was so offended that his partner was dirtying the aisle that he stopped halfway down and went back to pick all the flowers up! Hilarious, yes, but probably not the ceremony highlight the bride was hoping guests would remember.
To avoid a similar situation, attend the rehearsal so she can practice that trip down the aisle and make sure mom or dad is stationed at the end in case she loses her way.
Source: Etsy's Bazketmakr