The question is a little perplexing as I'm not sure what direction to go, trap or snare? You ask about trapping bobcat, but mention the snares.
Bobcat are a very visually oriented animal and they respond well to flagging to get them near a set. Flagging can be surveyor's tape, a feather on a string, vhs ribbon, cassette tape ribbon, cd on a string, Christmas time tinsel, a piece of hide hanging, etc. They go for bobcat gland lure, urine and catnip.
When constructing sets they can be crowded considerably and cubbies and walk-through type sets work good for them. They will even stick their head in a bucket with a 220 over it if the bucket is on it's side having bait in it.
Sorry I don't have specifics, but I didnt' know which one to talk about, trapping or snaring.
"Snaring is a process that rewards your efforts proportionately to your willingness to work, learn from your mistakes and to persevere." . . . - Member: MN & National Trappers Associations
Yup, snareman has some insight it is obvious. Ain't it fun to talk trapping and snarring stuff(!). As far as trapping bobcats, I'm not practiced there either, but relatives now having moved Out West tell me that they are learning to use home-made wire box LIVETRAPS, AND BAIT. And they are catching a significant number of the bobcats right-along it sounds like. The live traps allow them to release unharmed the more-numerously-caught smaller bobcats, then keeping only the large ones. Honestly, not intended to be advertising, but I noted their mention of a lure called 'POWDER RIVER CAT CALL' as to be very effective in their area and used by the savy trapper-guides out there. Fresh-killed rabbit twired insid the livetrap was said to be a favorite bait as well. Gotta go. Good luck and trap safe.
I think Bob Wendt put it best in his cat video. " Set on sign & make your set look like a kid made it" Everyone knows that if you set on sign you have a better chance of catching bobcats. Now the trapping like a kid part to me means, don`t worry if that trap is blended in perfect, throw feathers all over the place (if Legal in your state), dig a big ugly dirt hole, heck some guys don`t even cover there trap. Lets face it, bobcats are dumb, but there cats, and cats don`t act like canines. They take there sweet time. They don`t work a set like coyotes or fox. But they do like flashing shinny things and feathers. These things help keep the bobcats attention and will make it stay around longer and hopefully check out that big ugly dirt hole better.