Snowshadow, 
Foreign Trolls and Bots are a problem on social media and the Fediverse is not immune so here are two links to help you identify them:
On of the links is interactive so you can test your skill.
#SocialMedia #Election #Bot #Troll
https://www.dw.com/en/fact-check-how-do-i-spot-fake-social-media-accounts-bots-and-trolls/a-60313035
This one is interactive:
