Hi Kristen,
    You did a great job wording your question! You can add a friend's photo to 
Memory Maker when you are at the attraction, but you might not have to. If you and your friend are linked as Family and Friends in 
My Disney Experience AND you have each given permission to share information, their attraction photos and 
Disney PhotoPass photos should show up on your account. 
  Sometimes the attraction photos simply magically show up, but if there is a photo of your friend you want to be sure to get, make sure your friend uses their 
MagicBand to add the photo. If they are not using 
MagicBands, have them make note of when they visited the attraction and sometime before you leave the park for the day, visit the attraction and have the photo added to your 
Memory Maker.   
  I hope I've answered your question as well as you asked it! If I can help you any further with 
Memory Maker, or if you have any other questions, please let me know!
  Wishing you a magical vacation,
  Amy H.