Answer:
An example of dramatic irony would be if I were at a party and I were to say, "I can't wait to eat this cookie," and people around me knew the cookie was poisoned, that would be dramatic irony. Or if someone were to say, "No harm will come to you here," then harm came to them, that would also be considered dramatic irony.
Step-by-step explanation:
If you want to know more about dramatic irony watch A Series Of Unfortunate Events season 1 episode 3-4, It talks all about dramatic irony and other helpful english tips. (On Netflix)
Hope this helps!