I suggest you check out warren haynes instructional vcd. there's a section there where he discusses slide techniques, such as muting behind the slide, muring with your fingers, vibrato, etc.
or you may follow this notebook cover quote: "Make your own path, but leave a trail behind you" solitude and experimentation will lead you towards individuality
eg: my eccentricity draws me to play slide sometimes the way satch divebombs with his whammy, heheheh
sounds cool, but my neighbors don't agree with me...