Kay was born with this thing where her Altean marks can change colour due to emotions so...here's the key.

White=Normal

Teal=Scared

Green=Sick

Blue=Sad

Pink=Love/Blushing. (She can't actually blush)

Purple=Tired.

Red=Angry (Yes, She is angry crying in that picture.)

Yellow= You've annoyed her.

And...that's it...

Also, new rule, you play my crush (Keith) I'll play your crush.