C#: Invoke Method from MethodInfo

gistfile1.cs

// Define our Methods
private static MethodInfo containsMethod = typeof(string).GetMethod("Contains", new[] { typeof(string) });
private static MethodInfo startsWithMethod = typeof(string).GetMethod("StartsWith", new[] { typeof(string) });
private static MethodInfo endsWithMethod = typeof(string).GetMethod("EndsWith", new[] { typeof(string) })

// How to use (Invoke) our Method
containsMethod.Invoke("FirstName", new object[]{"First"}); // returns true