How to subscribe to other class’ events in C#?

by 
public class EventThrower
{
    public delegate void EventHandler(object sender, EventArgs args) ;
    public event EventHandler ThrowEvent = delegate{};

    public void SomethingHappened() => ThrowEvent(this, new EventArgs());
}

public class EventSubscriber
{
    private EventThrower _Thrower;

    public EventSubscriber()
    {
        _Thrower = new EventThrower();
        // using lambda expression..could use method like other answers on here

        _Thrower.ThrowEvent += (sender, args) => { DoSomething(); };
    }

    private void DoSomething()
    {
       // Handle event.....
    }
}

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