She's only two. There's no need to plan anything elaborate. At my daughter's 2nd birthday, we had sandwiches, chips, dips, a veggie tray and a cheese tray for the main food. After food, we opened presents, then had cake and ice cream. I bought a package of balloons and blew them up and just sort of tossed them on the floor in the living room. The kids played with those more than anything else, including the $200 kitchen we had JUST gotten her for Christmas (her b-day is in Feb)!!!! Just keep it simple. If it's mostly adults, they're going to be socializing and not participating in games and such. Plus, she'll probably get toys for her birthday and they'll want to play with all the new stuff.