You are:
(the) Glasses (Thanks @Rand al' Thor!)
All I remember was being at a store and then all of a sudden someone was taking me to this party!
Buy glasses at the store, then take it to the party.
Some people couldn't stop staring at me. Maybe they were impressed when I was holding onto everyone's drink!
People stare at glasses while toasting and always hold everyone's drink. Also people canthat wear 'glasses' can't stop staring at them.
Later that night, some guy slammed me onto the table and then started yelling, it was crazy.
Finished his drink, then slammed the glass on the table. Yelled "woo! That's tasty!"
It was one wild night...but now that I'm older, things seem to be a little hazy.
Glass gets hazy over the years :)