There is a concierge meeting/reception early on the day you depart. I believe it was to start at 1:30 when we cruised in August. We went at 1:40 and meet with the Drazen, the concierge manager on the Wonder. They had beverages and cookies available.
Someone will sit down with you and go over all your options - dinning, spa treatments, excursions, Palos, etc. They will ask what you want to sign up for an when you want to do it. Drazen then went and made a phone call and arranged everything. We had no problem getting times we wanted for the spa and Palos.
After that, a counselor from the kids program sat down with us and discussed the kids program. We were able to register both kids right there on the spot and received our pager.
We were organized and knew what we wanted and when we wanted to do it in advance. It took us less than 30 minutes to do all of this.
Each day we would receive a nice note from the concierge staff with all our scheduled activities for the day listed along with the weather forecast.
Lastly, there was a concierge reception later in the cruise. I believe it was on either Tuesday or Wednesday on our 4 day cruise. They had beverages (yes, adult beverages) along with hot and cold appetizers. The reception was late in the afternoon and since we had early seating, we did not stay long.