Well, basically the instructions are in-game but here's a quick explanation. Don't press the right arrow key or space after you've clicked the green flag. Use the right arrow key ( --> ) to open the envelope. Use the space key to pull the card out, open it and read it. I recommend not pressing the space key to fast or else you might miss what it says. ~If you want to: Favorite, Love, and/or Follow~
I got the idea from "GIFT ME" by HunnyMelon. Remember to check out his/her account! Other than that, everything (the scripts and drawings) I did.