8. Pretend to be asleep
Or better yet, fall asleep for real! If dozing among the shrill cries of toddlers is unrealistic, however, throw on one of those douchey eye masks or wrap a t-shirt around your head like you're taking a fraternity pledge.
7. Make them uncomfortable
While airplane conversation tends to be standard “getting to know you” banter, escalate the discussion by subtly inserting as many controversial topics or questions as possible, and then letting the awkwardness end it. Examples: “Ah, so you're in latex sales... interesting. What do you bring down a year, anyway?" “Going to visit your daughter and her husband -- that sounds like fun. Let me ask you, how old do you think she was when she lost her virginity? Just curious." "Question: if there was one race of people deserving of ethnic cleansing, who you going with?”