To use an Instant Pot as a slow cooker, follow these key steps:

1. Press the Slow Cook button on the Instant Pot.
2. Adjust the cooking time using the + and - buttons.
3. Adjust the temperature setting with the "Adjust" button to select between Less, Normal, and More. These correspond roughly to Keep Warm, Low, and High heat on a traditional slow cooker.
4. Use the "Normal" setting to mimic low heat and "More" to mimic high heat.
5. Set the lid to "venting" rather than sealed since slow cooking does not use pressure.
6. Optionally, preheat the Instant Pot using the Sauté function to get it hot before starting slow cooking for better results.
7. Reduce liquids in recipes by about 15-20% since the Instant Pot slow cook mode traps moisture better than a traditional slow cooker.
8. Avoid lifting the lid too often during cooking; every time you lift it, add about 25 minutes more cooking time.
9. Cooking times may need to be extended slightly compared to a traditional slow cooker.

The slow cook function on the Instant Pot works but is different from a dedicated slow cooker because it heats from the bottom only and does not allow as much evaporation. Using the sauté setting first to bring food to a boil and then switching to slow cook helps improve results. The "More" setting cooks hotter and faster, so use that if a slow cooker recipe calls for high heat. These tips should help successfully use the Instant Pot as a slow cooker while managing its differences from traditional slow cookers.