There are three states of mind: reasonable, wise and emotional. You can learn more here:

As with anything new such as meditation, yoga, and/or can feel uncomfortable. It takes practice and a willingness to improve the moment by coming out of your shell/zone. These guidelines for accepting reality with half-smile exercises are adapted from The Miracle Of Mindfulness: A manual of meditation by Thich Nhat Hanh

Accept reality with your body. A tense smile tells the brain that you are hiding or masking something. A half-smile is slightly upturned lips with a relaxed face. Try to adopt a serene facial expression.

When You First Awake In The AM: hang a sign, a branch ( I have cinnamon scented mini brooms up above my kitchen entrance), or even the word “smile” on the wall so that you see it right away. It will serve as a reminder. Use the seconds before you get out of bed to take hold of your breath. Inhale and exhale with maintaining a half-smile.

During Your Free Moments : Observe a child, a painting on the wall, sit by the river and take in all the sights. Smile.

Listening To Music: {My Favorite} Pay attention to the words, music, rhythm and sentiments of the music you choose..Half-smile as you watch your inhalations and exhalations.

Lying Down Position: let go of every muscle in your body. Think of yourself as a cat, completely relaxed by a warm fire, whose muscles yield without resistance to anyone’s touch. Maintain a half-smile. Remember, your body communicates with your mind.

Let go of vengeance, useless anger, righteousness, arrogance, regret and any other emotion that hurts you and doesn’t work. Acknowledge, accept and work on turning the mind to a more positive way of thinking about interpersonal and self-respect effectiveness

Give it a try, you can do it!