While watching a live stream, you can express how you feel by sending hearts, tears, or smiles. On web, click the buttons below the chat box to express your feelings. 

On iOS or Android, touch  and draw your expression on the screen with your finger! 

• To draw a heart, start at the top of the heart you want to draw and move your finger clockwise to form the heart.  
• To draw a tear, start with the top point of the tear and move your finger clockwise to draw the tear.
• To draw a smile, just draw the smile, either from left to right or right to left.

Draw as many expressions as you'd like. To stop drawing, click  again.

As people express themselves, Halogen calculates the mood of the chat room, and displays animations in the pulse bar at the bottom of the screen to show how people are reacting.