Insider tip! Sally taught me that when you see a yellow road sign with an arrow and cryptic letters both right-side-up AND upside-down, it means they are pointing to where a movie is being filmed!
She saw this one one when The Zookeeper was being filmed in Boston:
Note that they can flip this baby to point in any direction.
Sally noticed a new one on Sunday, it said “IHYD” and she was sure it was pointing to another shooting location.
Yup. She found out this this is for “I Hate You, Dad”, starring Adam Sandler, Susan Sarandon, James Caan.
Sally says “Also, look for all the people in the cast, because they’re already being spotted around Boston!”
Jane's Lessons Learned 
you need to put the doodle lesson!