You're gonna get the ticket and the wristband 2 hrs before the show, while you do that ppl will have you know that you MUST be present at the box office outside the theatre at 5.30PM sharp.
Some bodyguards (probs from her team) will check for your name on their name list of the ppl who bought the M&G package. You only have to show your ID/passport (anything official that has your name and your photo). This takes max 10 mins.
Then you guys will get in queue and enter the theatre as guided by the people of her team. As you enter the theater, you will be greeted by Fe. Thats when the backstage tour happens. I wont spoil it for you. You'll have a lot of great fun, trust me.
If your friend doesnt want to see the show, no worries. It's Vegas, you dont get bored in Vegas. The Planet Hollywood is right on The Strip, chances are hes gonna get just as much entertainment as you are with Britney. If you guys dont want to lose each other, there are COUNTLESS places at PH he can sit down and enjoy a nice drink or two. Tip: the Gordon Ramsay restaurant is on the same floor as AXIS and its only a couple steps across the theatre. Lol.