These three Call of Duty actors shared the simple life advice that guides them. Michael Rooker says “be nice.” He’s best known as Yondu in Marvel’s “Guardians of the Galaxy” and as Merle Dixon on “The Walking Dead.” Kiernan Shipka’s reminder is “stay curious.” She broke out as Sally Draper on “Mad Men” and led Netflix’s “Chilling Adventures of Sabrina.” Milo Ventimiglia goes with “life is long.” He’s widely known for playing Jack Pearson in “This Is Us,” along with roles in “Gilmore Girls” and “Heroes.” #guestbook #film #pubity #viral