To perform "Glare at Your Nemesis" action, you have to build a Nemesis relationship. Get the level of inimical relation up to 8 and do "Declare venomous spite" social event to have your Nemesis.
Every Hero Needs One
"Glare At" your Nemesis
Gold Sack, Relationship Token, Simoleon, SimCash
1. Declare venomous spite
Declare venomous spite social event is required to make your Enemy sim into your Nemesis. The social event is unlocked at the relationship level 8. It costs 10 hunger, so prepare for it.
Start the event and annoy your Enemy as much as you can. Once the social event is completed, your Enemy becomes your Nemesis. Then, "Glare at" action is unlocked.
2. Glare at your Nemesis
Now you can perform "Glare at" action on your Nemesis Sim. It's very easy to peform and just costs 1 Energy, 1 Hunger, 5 seconds.
Your Nemesis gets much annoyed by your behaviour. After completing the aspiration, you'll be asked if you choose Life-Long Rivalry life goal. Let's keep annoying your Nemesis and build Arch-Nemesis relationship!