It's kinda a complicated process so I'll break it down into five, slightly more manageable steps for you.
Step 1: Make sure it's Friday night.
Step 2: Get in your jammies.
Step 3: Sit on your bed. (Ideally, bed sheets should be all scrunched towards the bottom/falling off the bed because you haven't actually made the bed in quite some time.)
Step 4: Play Scrabble.
Step 5: Take pictures of yourselves playing Scrabble.
Don't beat yourself up if you don't get the hang of it right away.
Being as cool as us on a Friday night can be pretty tricky.