Ok... to share your personal story with friends...

- you (the one sharing the story) have to be the leader of the party
- invite along up to four of your friends
- enter the instanced area where the story is, this will send a prompt to the others in the party asking if they would like to join (this is on a timer by the way)
- once everyone is good to go, the party will be moved to the leaders personal story instance
- the personal story instance does scale with the number of people there
- if you or someone in the party is higher level than the personal story they will be down-leveled so as to not steamroll the content


Edit (some stuff I forgot):
- let's say that you and I Woode are grouped up and we are both Humans between levels 1-10 and we both picked the Nobility option during character creation. If we are at the same point in the story line and I'm helping you, the game will prompt and ask me if I would like to progress my story as well. I can either choose to accept or deny this if I want to come back at a later time to do it by myself.


And I do feel this would be a nice idea, it would allow you to see all the different choices of how a characters story plays out.

I'd love to do this but 1-2 hours a day is more time that I will have in GW2 let alone just focused on the story.  What I've been thinking of is saving my story for the end of each level bracket (e.g. Blood Legion story for when I'm around level 9) and if i do this I might invite others along to experience that story.  I know I'd love to see all the other storylines so I assume others will as well.

Even if I miss a few, I'm sure there will be videos of the cutscenes posted on youtube before long.

I agree that once a day is too much in the long term.  But I was thinking to set up a time on Saturday and Sunday, the 25th and 26th, as a kind of a break from solo exploration, and as a part of the opening celebration.  I'm still confused as to the starting time though.  I see midnight, but the counter on the GW2 site still shows noon.  When the game starts will have an impact on Saturdays time.