Does the bride have to open shower gifts at a shower?
I think that it all depends upon the crowd that you’re inviting. In general, it’s good manners to open the gifts and thank the givers at the party. Most of the time, that’s because great Aunt Sally is there and would be offended if you did otherwise. If all of the party-goers are of the same mind (and age), then no big deal (just make sure that the bride to be follows up with thank-you notes). Personally, I would play it safe, and arrange for everyone to meet at your house first before going on to the restaurant. That way, she can greet everyone, open the gifts, and avoid hurt feelings and whispers afterwards.