Read the following anecdote to answer question

In Salzburg as a group of about 15 family and friends. We asked a nice German woman to take our photo. She takes one then says “OK, back up”. So, we all shuffle as a group like 3 feet backwards. She immediately starts laughing and explains she meant she was taking a backup photo. Safe to say the smiles in the second photo were genuine.

(https://www.boredpanda.com/funny-travel-miscommunications/)