Party/friend get together etiquette question

Hey yall, I recentluy bought a bottle of monkey shoulder because I’ve heard a lot of good things about it but I haven’t personally tried it before. I’m going to a get-together of old friends tomorrow and was thinking about bringing the monkey shoulder, but I don’t want to bring something I don’t end up liking or think tastes so bad I wouldn’t give it to friends.

would it be weird to taste it at home tonight and bring an opened bottle to the party tomorrow? For a lot of drinks or snacks, open items are weird for sharing, but I don’t know if that applies to alcohol.

would you ever bring an open or partly finished bottle? would you be weirded out if a friend did?

secondarily, what do you think of monkey shoulder?