[Binding]
public class StepsUsingStaticType
{
    private Person _person;

    [Given(@"I create an instance from this table")]
    public void GivenICreateAnInstanceFromThisTable(DataTable table)
    {
        _person = table.CreateInstance<Person>();
    }

    [Then(@"the Name property on Person should equal '(.*)'")]
    public void PersonNameShouldBe(string expectedValue)
    {
        Assert.That(_person.Name, Is.EqualTo(expectedValue));
    }
}

// And then make sure to not forget defining a separate Person class for testing, 
// since you don't want to reuse the one your system under test is using - that's bad practice

// Should probably be in another file too...
// might need unit tests if the logic is complicated
public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
    public DateTime BirthDate { get; set; }
    public double LengthInMeters { get; set; }
}

[Binding]
public class StepsUsingDynamic
{
    private dynamic _instance;

    [Given(@"I create an instance from this table")]
    public void c(dynamic instance) { _instance = instance; }

    [Then(@"the Name property should equal '(.*)'")]
    public void NameShouldBe(string expectedValue)
    {
        Assert.That(_instance.Name, Is.EqualTo(expectedValue));
    }
}