Usually I post a sneak peak of your session on my website and/or Facebook and a few on Instagram. This are all done for my promotional purposes. This is where other people usually go to look at my work and probably the exact way you have seen my work as well.
I do however understand that there can be circumstances where a client really don’t want this to be done. Please notify me in ADVANCE if this is the case, or make sure its written in the contract as well.
I anyone else post my photos on any social media I do request that you use the photos with my watermark on it. I specially add an extra resized folder with these watermarked photos for these purposes. Otherwise photo credit must be given.