A trotline is a fishing technique that involves suspending a long line in the water with multiple hooks attached to it. Here are the steps to run a trotline:

1. Choose a suitable location: Look for a spot in the water where fish are likely to be found. This could be near underwater structures like logs, rocks, or drop-offs.

2. Set up the trotline: Tie one end of the trotline to a stationary object on shore, like a tree or rock. Then, attach weights to the other end of the line and space out your hooks along the length of the line, tying them securely in place.

3. Bait the hooks: Use live bait or lures to attract fish to your hooks.

4. Deploy the trotline: Carefully lower the trotline into the water and let it sink to the desired depth. You can use markers on shore to help you remember where you placed your trotline.

5. Check the trotline regularly: Depending on local regulations, you may need to check your trotline every few hours or once per day. Slowly pull in the line by hand or with a boat, removing any fish you catch and rebaiting any empty hooks.

6. Remove the trotline: When you're finished fishing, carefully remove the trotline from the water and store it in a safe place until your next fishing trip.

It's important to note that regulations regarding trotlines vary by location, so be sure to check local laws before using this fishing technique.