EYES OPEN is a paper note in Fallout 76, introduced in the Skyline Valley update.
Location[]
The note can be found on a table in the shack in the northeastern corner of Stony Man Lookout.
Transcript[]
SNEEKY HooMaNs trY snEek to KilL us in tha nite
kep BOth eye opEN whEn u r on gArd tonite
If thEy com baK WE will CRUSH deM
Stoopid StiNKY Ideot usELESS hUMens scomBagS