Any videos on proper chest massage technique?! I've bloody forgotten! :(

[Whataboob]

As title! I was sort of shown a demo, but am unsure as to how it should be best done now. I can't quite remember the action!

Does any lubricant need to be used?

And where abouts would the scar tissue be? Over a large area? I just had excision with no lipo.

Many thanks in advance for any help! I need to start tonight really so any rapid responses would be greatly appreciated!