DD's 3rd birthday is coming up. I have never met any of the other parents in her daycare class, but I know there are a couple other girls she plays with a lot. Is it okay for me to just invite those 3 girls to her bday party, or do I need to invite the whole class? I'd rather not invite them all because I don't have space for them. Although I honestly doubt many would come because we live a bit far from the school.