Just that really. I've invited all of my child's infant class to her birthday party. Most have responded and lots coming but there's almost half the class who haven't responded one way or the other despite 2 invites whatsapp group which all see. What do you do about food and party favours? I definitely don't want to fork out more than needed on party bags etc especially since even the recyclable bits aren't exactly environmentally friendly. However I also don't want to commit the faux pas of not having enough. Do people tend to just suck it up and buy more than needed? Am I safe to assume that if they haven't responded now they won't be coming? You can probably tell I haven't done this often