somking laser pointer?

i found a trick on youtube with a laser pointer and breathing smoke i whanted to know how to do it

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iceng6 years ago
2 guys lighting exhaled cigaret smoke with a laser, what trick !
robertjames (author)  iceng6 years ago
i thout that they didd something else
rickharris6 years ago
Smoking ANYTHING bad news.
Kiteman6 years ago
It would help if you gave us a link to the trick...
robertjames (author)  Kiteman6 years ago
its ''youtube.com/watch?v=bLJjwp8OnxE''