Tomorrow is my birthday (October 2) /bant/... I want to celebrate it by throwing a small party with my college friends. I never celebrated my birthday with anyone after I turned 8. Its been 15 years since then its my first time to celebrate it with group of friends

But heres the problem, I dont know how to celebrate it and even though I invited them, they seem not to believe me since I never mentioned my birthday at all to them. I never was open about it and no one really knows my birthday for years until I announced it a few days ago. I always celebrated it alone by choice...

So /bant/, even though I want it to celebrate my birthday with them as a change of pace but they seem confused about it, what should I do then? Do you have any ideas how I celebrate it?