A classic trick (that should only be done by people of legal age) is the Call Me Cigarette Trick.
Write the name of the person you would like to contact you in pencil onto the tobacco part of a single cigarette (not the filter part). Write the name horizontally across the length of the cigarette, with the first letter of their name by the end you light, the rest of the name going down to the filter. Light the cigarette, smoke it, focus strongly on the person calling you, and supposedly they'll call by the time you've smoke it and put the cigarette out.
I have never tried this, but people swear by it. It is a classic.