I've been reading Fire of Love which has beautiful direction for yoga teachers to add a deeper level into teaching. I have found it inspiring and added one aspect to my class Saturday morning with lovely results.
After our pranayama (breathwork) practice I asked my students to place the fingers of their right hand at their heart center and turn inward finding their inner smile. Once connected, I instructed them to allow the sense of joy to radiate through their chest and upward to their faces.
After a few breaths I peeked my eyes open and scanned the room. Every student had the most lovely, relaxed, blissful smile upon their face. Mine radiated even bigger, both inside and on my face, seeing how this small gesture brought peace and ananda (bliss) to my students with such ease.
Try it yourself ~ find your inner smile and little moment of bliss.