Give any drunk person enough shots and then ask them to "give you a beat". Then watch them over-confidently spout a series of saliva-filled noises from their body, making sure to continue way longer than anyone would like.
Arguments are par for the course when drinking, but get anyone drunk enough and you're guaranteed a dedicated negotiator for any confrontation. They'll be sure to make things more complicated by being overly physical and recapping each side of the argument continuously.
Men of all ages can only drink a certain amount before they reveal their ability to climb things. Trees, buildings, people; you name it and a dude will risk certain injury just to show off this manly talent.
After enough frozen margaritas, every girl becomes blessed with expert photography skills. Get ready to take the same blurry picture 50 times while listening to ear-piercing directions like "Really smile!" and "Skinny up your arm Sara!"
All it takes is a couple beers for most people's talent for sneaking around to come out. Watch them break into their own house with the confidence of James Bond, all while scream-whispering "bee quiet!! My roommade is sleeeeping!"
The drunker anyone gets, the more sure they become of their ability to appear completely sober. As they sway back and forth attempting to regain visual focus, they'll be sure to tell you repeatedly how they feel "completely fine".