I normally check the wallet history, and who delegates to them and check their account(s) as well, if they are easily accessible;
For a while either Hive account@livinguktaiwan or that other nice young lady who's name escapes me at the moment would ask them who invited them to Hive.
I got involved in a convo with the owner of two of those accounts, he claims that the Hive account@kachibee and Hive account@nnaemeka1 accounts belong to his younger brother and nephew respectively. Turned into quite a conversation, I don't normally go this far onchain.
@ckrobinson5/the-reason-why-plants-in