During your stay in Byzantium, you can complete Cupid of the Laboratory quest. This page of our guide to The Outer Worlds has a detailed walkthrough for this quest.
List of objectives
- Save the sprats;
- Go back to Giles.
Talk to Giles to start this quest - he is standing near the entrance to the technical tunnels. Talk to him and you will find out that he has lost the lab sprats.
If you agree to help, you will have to go down into the tunnels. You need to chase and catch some of the sprats. The other creatures won't try to run away. While exploring the undergrounds, you need to watch out for robots patrolling the area.
Once you catch all the sprats, go back to Giles.