how do I throw a graduation party? I do not! ... it is not a custom with us to throw a graduation party. However, I have attended many! I think it all depends on the age of the child/adult. The best and most fun ones I have been to have been very casual outdoor BBQ events. Where people come and eat/drink and just chat! That way people can drop in or stay for awhile! I think this is great because of the summer time period of graduation! Easy way to go rather than a formal affair!