Spy Hoovies are a friendly subclass in tf2, the spy will disguise as mostly a Hoovy but occasionally other friendlies (commonly on the enemy team) and crouch/stand near them and become friendly.
Loadout[]
There is no particular loadout that is commonly used, however the spycicle and dead ringer are useful for avoiding damage from hostile enemies.
Behavior[]
Spy Hoovys will almost always act exactly like a Hoovy, and to the enemy team cannot be distinguished. However, there are some Spy Hoovys who will pretend to be a Hoovy, only to then backstab you when you look away. While this is potentially deadly, they only do this for fun and mean no real harm.
This is a passive version of the imposter spy.