to hand out my child's birthday party invitation at another child's birthday party? It is now summer holiday and school has ended more than a week ago. Last week I have decided at the last-minute that I am going to throw my child a birthday party next week (I wasn't going to throw one; but I changed my mind). Since I didn't decide until last week, instead of handing out invitations to parents at the school (the easy way), I have to phone every one up and invite the children one by one. However I do not have all of the parents' email addresses or mailing address so I only managed to do a verbal invite. This Friday we are going to attend one of my child's schoolfriend's birthday party. Do you think it will be acceptable if I hand out my child's birthday invite at the friend's party? Everyone has confirmed their attendance; I wonder if I have to do an extra step to give them a paper invite as well. Please advise.