S.W.
Hi, A.!
My son is almost 6. I've done both...open gifts at parties and also wait 'till get home. I've settled into a routine of opening them at parties that are primarily family and close friends b/c they tend to enjoy seeing his reaction. Now that he is in school since last year, when it's a party that is primarily just his school buddies, I tend to wait 'till he gets home to open gifts since that tends to be boring for his friends to sit and watch.
S.
from PT :-)