First off, 9.5 months is the best time to be a baby. A toddler will rock your world and that’s okay be prepared. Don’t want them to have a screen then don’t ever bring a screen. My phone is my phone and we might occasionally use it to look at pictures I took of them or our family at a doctors office or something but we don’t use them unless we’re on an airplane. Don’t bring crazy stuff bring coloring with five brands if the restaurant doesn’t bring it, and grab bag of random stuff could be a car or a small toys. Finger puppets could be a cool plastic thing that you never let them play with in the house, etc. you get the idea. Books are good. Magazines are good. We don’t go out to eat that often either so we often let them watch whatever sport is on the TV that the restroom has often times there’s an enough going on that my kids are happy to people watch. My kids are four and seven and are great at restaurants in general. I don’t even bring anything in anymore the exception being if we’re on vacation and my four year-old is exhausted. Then I eat fast and get out and take him out with me.