Is it appropriate to register as soon as I'm engaged?
Yes, you may get registered at the time of your engagement.
I've been invited to an engagement party. Should I bring a gift?
Gifts are not required at an engagement party, though you may certainly bring one if you'd like. Many couples register when they are engaged. If interested, ask the couple or their family where they are registered.
My parents are throwing an engagement party in our honor. Should we open gifts at the celebration?
Typically couples do not open gifts at an engagement party as gifts are not required and not all guests will bring them.