Certainly! In C#, you can add items to a list using the Add method. Here's a simple example:

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        // Create a list of integers
        List<int> myNumbers = new List<int>();

        // Add items to the list
        myNumbers.Add(10);
        myNumbers.Add(20);
        myNumbers.Add(30);

        // Display the contents of the list
        Console.WriteLine("List contents:");
        foreach (var number in myNumbers)
        {
            Console.WriteLine(number);
        }
    }
}

In this example, we create a list of integers (List<int> myNumbers) and use the Add method to add three numbers (10, 20, and 30) to the list. The foreach loop is then used to iterate through the list and display its contents.