(A/N : just sayin, I ain't sure if he's an actual pasta or not but I'm just gonna go with it)

1. Stare into his eyes. An hour later, he'll come back to you in his Minecraft form smacking you with anything he can find. He finds staring into his eyes a threat (I'm pretty sure, one of my friends told me that once...)

2. Ask him if he's in the Slenderman/Offenderman/Trenderman/Splenderman family. Think about it. They're all tall and their names all end in 'enderman'.

Ehhhhhhhh, that's all I got.