Adding smoke to the image

To add the smoke to this image I used the brush tool in the colour white on an extremely low opacity and did random swirls and flicks. I then used the smudge tool to move the lines around so they appeared more free flowing like real smoke. Next I used the blur tool to make the lines not as prominent and it appeared to look more like real smoke. I then used the brush tool in black with a low opacity to remove the harsh edges from the smoke to make it appear softer and light.

I then wanted to make the cigarette appear to be lit so it looked real. To do this is used the brush tool in an orange colour and added a small dot to the end of the cigarette. 

 

I then changed the colour to a bright red to make the cigarette appear hot and alight. 

Finally I added a black dot on the end of the cigarette to represent the ash being created by the cigarette being lit.