1) They ask you to text a friend or family about an item. 2) They want to communicate outside the app 3) Ask if you will ship the item even though it says local pickup only in the description 4) Frequent misspellings and grammatical errors in their post. Feel free to add your own.
Don't forget the ones who do show up & only bring a 1/4th of the asking price. This has happened to me five times now. Didn't work for them either. Nor did begging. Or being pushy. Or the one that tried to fast talk me. $20.00 means $20.00...not $5.00 ;-)