Responses in this thread seem pretty well divided between attracting cats to area and attracting foot to trap pan. My comments pertain to visuals at trap.
Block the set in well from all directions. Opening where trap is can be V-type (step in, back out), but I think walk through is better. Whether it's a dirt hole, scent post, rub set, flat set, it can be constructed as a walk through. If walk through, visual attractor(s) is/are in side(s) of passageway. If not walk through, attractor is behind trap where cat has to step on pan to reach attractor or sniff scent.
Best possible at-trap visual attractor for bobcats is birds or feathers. I am not saying use them because in many cases they are illegal. Most species of wild birds are protected by federal law. Many states have regulations regarding use of game birds/animals/fish or parts, as well as set-back distance from trap for visible bait (with "bait" being broadly defined to include such things as feathers, even if they are chicken feathers).
In Idaho where I live game bird/animal/fish can be used only if they are made into scent. The exception allowing animal parts as visuals is bleached bones. I have used faux fur and other non-animal items. At least technically, use of sheep wool here within 30' of trap or snare is illegal.
For visual attractors to area I once bought a quantity of salvaged computer hard disks off eBay. Those disks are very shinny and were cheap.