If the
venue has
drop tile ceilings, either run the cable above (as mentioned before), or use a combination scissor clip and bridal ring on the tile t-tracks (scissor clip clamps on to the t-track, bridal ring is a
pigtail sort of thing that lets you easily
drop small cables into the loop), or if you want a faster method, just tuck the cable between the
edge of the tile and the t-track - minimal disruption of the tiles, much less work, and only the bits where you jump the cross tracks are visible. Sometimes buying white jacketed cables helps you hide them against the ceiling.
Be wary of attaching things into
airwall tracks - each manufacturer makes a different
profile, so what works perfectly fine
in one place might not work at all in a different building. Some
venue directors get rather upset when you ask to hook anything to the
track, for fear that you will cause permanent damage, requiring very expensive repairs.