How can i send pic by message to s.o ??

How do I make Photos 'Private?'
When you place a picture in the 'Main Pic' slot
it will allow you to designate it as "Public"
or "Private."

You do this by left-clicking on the photo.

To give someone access to the 'Private' images,
you merely right-click on the 'Private' photo
which gives you a drop-down menu, left-click on
'Properties' and copy the URL (link) of that
photo and send it via email to anyone you wish.

It stays 'Private.'
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Pertinent to your question, you can send the URL
(link) to any of your Mingle2 online pics this
same way, Private or otherwise.