• Broken Gaze, Blackened Gaze, Spider Eyes, and Starry Gaze
• Gaining a large amount of Etheric with the eyes installed.
• Getting beaten up with the eyes installed (With or without an Etheric effect).
• Using a chain of five different gaze techniques to end a fight (All with techniques that have been proven to be gaze techniques).
• Using gaze techniques with any set of broken glasses equipped.
• Using gaze techniques with no hat equipped at all.
• Using gaze techniques against the Angered Rat and Rat King.
• Using gaze techniques against the Tusked Shadow.
• Searching in Sudden Darkness in the Records Office.
• Threatening the bouncer outside The Cellar Door (with or without 10+ Etheric Power).
• Helping, intimidating, or telling the Unruly Tiger to die.
• Trying to stare down the Spider Patron in Arachnid Altercation.
• Making Sushi or Chemistry stuff with the eyes equipped and while Etheric.
• Eating Sushi while Etheric.
• Using a flask of tears or toxic tears (Just gave the usual techniques)

2023 EDIT: Using dehydrated eyedrops or medical tears while Etheric also doesn't work. It seems like there should be something here - everything from the Discount Cyberclinic but this and the scaled arm has a technique associated with it.