Graduation Parties

Dear Limo Princess,
If you have a graduation party (for High School) that is more formal and not an open house, what is the etiquette for gifts? If you didn't write anything on the invite about gifts, who would and who wouldn't bring gifts? Thanks!

Dear Joe,
Graduation gifts for High School are totally optional, no one is required or expected to bring a gift even though high school kids routinely use graduation as an opportunity to shamelessly fish for gifts. Mom and Dad might come up with a gift and maybe Grandma or Aunt Betty, but it's not a requirement--a "Congratulations" is all that is necessary to be socially proper. If someone wants to give a gift, it is entirely at their discretion and not required.
All the Best,
Limo Princess