Thinking about suicide as a passing thought and actually planning it out in your mind are quite different though.Then taking it to the next step is again another thing entirely.Before people actually carry out suicide, they will probably do a dummy run as it were, if this has happened. Perhaps cutting themselves for example or hitting themselves or other ways of hurting themselves. These people usually want to be helped.Talking to a friend about feeling suicidal is another call for help. Just talk to them about what exactly they mean, what have they thought, what have they done. Perhaps point them in the direction of a professional. There are plenty of places that are trained to deal with people that are truely suicidal.