There maybe confusing names out there.
Hangout is IM feature of gmail google right?

Hangouts (NOTE the S)chat site.
I got invite pending ...Welcome to hangouts Adult person's!
(it's a free live chat room. **** Date)
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Two totally difference way to chat.
Hangouts is a questionable way to waste time and give away your name address etc so spammers can sell list to ads.
Tt free?
How do they stay in business. Follow the money!
This is my opinion and I will stick with me until I see otherwise.