Ulo displays a wide range of eyes expressions. Here is a list of emotions Ulo can express :
Happy = Ulo is up and running
Tired = Battery is low
Asleep = You put in "Sleep" mode
Dizzy = You are moving Ulo, resetting detection exclusion zone
Crying = Ulo crashed and will reboot
Updating = (circular arrows) Ulo is updating or Ulo is resetting
Lightning symbol = USB is plugged
Battery level = Ulo is charging
Green Battery = Ulo is charged
Squinting = Ulo is watching you (live stream)
Blinking = Ulo is taking a snapshot
Thrilled = You performed a swipe on its forehead (caress)
Standing on guard = Ulo is entering Alert Mode
Grumpy = Will be used in behaviors (future update)
Amazed = Will be used in behaviors (future update)
Puzzled = Will be used in behaviors (future update)
Attentive = Will be used in behaviors (future update)
Bored = Will be used in behaviors (future update)
Crazy = Will be used in behaviors (future update)
In love = Will be used in behaviors (future update)
Laughing = Will be used in behaviors (future update)
Nervous= Will be used in behaviors (future update)
Proud = Will be used in behaviors (future update)
Sad = Will be used in behaviors (future update)
Scared = Will be used in behaviors (future update)
Upset= Will be used in behaviors (future update)