As we know, it' mainly your sense of smell that provides or, at least enhances flavor. You've to release some through your nose.
This might sound strange but, this is what I do...
Facing the West, (most would think East) I inhale through my mouth for 4 seconds, (I've got an evic so I can time it) then for approximately another 4-5 seconds I hold one nostril, not sure which one, and take the rest in my nose.
I hold it in for 3.5 secs, turn to the East and blow the rest out my ....
This is mostly for cake like juices. Totally flip the process for fruit type juices.
Hey, try it, you'll like it.