Next gen spy check

I hope you guys can talk english now, because this is important, so I dont post in German. When TF once arose from the darkness of the Quake Engine, we still used to shoot everyone who might be a spy, just to see if we were right. Thanks to Garry’s mod, we now better nowadays, as can be seen here:

But how to recognize a spy without friendly fire?

1. Listen to his accent!
2. Check for hi tech equipment
3. Investigate: is he leaving fingerprints
4. Does he try to trade items?
5. Is he verkabelt? (does he wear those tiny white earpods?)

Thanks for wasting your time reading this and wasting time with me. See you in Portal 2,
sincerly,
Nagel
(Glad ‘n’ doze Industries)

PS: Hi tech equipment sample: