I think one of the most underappreciated moments in Thor Ragnarok is
when Thor pokes the business card with his ‘umbrella’ while whispering “Loki?”
Like it is completely possible for Loki to inexplicably transform himself into a small white rectangle of cardstock
So he better poke it with a stick
Just in case cardstock Loki goes “Mblerg it’s me!” and stabs him or something