To do any of those you will need to spot direct the characters close enough together so that the action will look correct.
One character will need to be doing the rear version of the animation. You will want this character in the furthest forward layer.
The other character will do the normal version of the animation. You will want them in a further back layer.
Both characters will need to face the same direction.
Example:
EXT. INSTAGRAM PURPLE TREE
&AUTHOR spot 1.280 160 0 in zone 1 at layer -2 and AUTHOR faces right and AUTHOR is hug
&LUCAS spot 1.280 185 -3 in zone 1 at layer 2 and LUCAS faces right and LUCAS is hug_rear
Not the best looking hug, but it’s just an example.