how to make this (heart warming?) glow effect (cycles?)

i’m putting it in general because i don’t know how to… particle? lighting? (in cycles; or maybe just the compositor)
anyways, this is the picture


i want that warm glow effect but how do i do it? and it’s kinda blurry, but it doesn’t cover up anything, (i think)
and how do i make the background blur so much too?

Background blur = Depth of Field (http://wiki.blender.org/index.php/Doc:2.6/Manual/Render/Cycles/Camera) or (http://cgcookie.com/blender/lessons/1-improving-blender-renders-with-photography-techniques/)

The slight glow effect is probably a bloom. (http://www.wikihow.com/Composite-a-Bloom-Effect-in-Blender)

Bokeh is obviously faked (in fact I’m pretty sure I have the same image in my library) by adding the original render over the bokeh one.