When to Use
- When the guy you want to rail pulls into your driveway.
- Checking the window like a creep when you hear your neighbor having sex.
- When your crush walks by and you are trying to catch a glimpse of their body.

Source: Family Guy
Peter Griffin stands by a window in his living room, carefully pulling on the cord to tilt the window blinds open just enough to sneak a look outside.
This is a reaction meme used when you are being a nosey fuck, stalking someone you want to fuck, or waiting for a package or person to arrive so you can go full feral and pounce on them.