That being said, there are some special considerations that the at-home user doesn't usually encounter.
Note: If you are an instructor, you should take a look at the affiliate course: http://lasrapp.com/instructor/info
If you are a LASR dealer, or just a curious soul, you should also take a look through the videos for that course.
Targets: Curtains and curtain rods are common features at shows. It seems so easy to put the targets hanging from the rods or stuck to the curtains in some fashion. AVOID THIS. Use a solid back wall or target stands. Those curtains will move around constantly, and even if they do not move around enough to cause lighting problems, it will cause your target zones to get misaligned, and you will have to spend time re-aligning them.
Camera: Tripod, Tripod, Tripod. Makes life so much easier. Even if your camera does not have a tripod mount, some painters tape can usually be used to improvise. The main thing here is when folks are messing around, picking up and setting down weapons, they bump the table. Well, if the table is like most gun-show tables, it was built in the early 1800s and wobbles about 3 inches in any direction. This wobbling also means that your camera is moving, and this presents similar issues to moving targets.
An alternative to a tripod is to use the back of a chair. We have actually done this several times. A little bit of painters tape and a healthy few inches between the chair and the table make life much easier. Remember, the key thing is to have your camera (and targets) mounted on something that isn't going to be bumped/move around.
Make some noise: Speakers. Hardwire speakers. Loud ones. Control the volume so you aren't annoying to everyone but be prepared to turn it up. Avoid bluetooth speakers as they are very prone to interference, especially with everyone walking around with phones in their pockets.
Show some screen: TVs or larger monitors, mounted at head height or taller, facing out from the crowd. Don't get so many that they are in the way, but having one up is a good idea. Also, you can set your screensaver to be a video showing LASR or stuff from your classes or whatever. That way when you get to talking to someone for 20 minutes and no one is shooting, there is at least something being shown.
Don't be lethargic: Is traffic flow low at the moment? Do some shooting, make some noise. Make up a drill on the spot and try to beat each other's time/accuracy, or if it is just you working, try to beat your own time. Get creative, throw some reloads in there, use other peoples booths and banners as barricades, do some reloads. Also, KNOW WHAT YOU'RE DOING, if you are teacupping using crap techniques people will notice, and when you try to talk to them about enhancing their dryfire practice or why they should attend your class, they are much less likely to take you seriously.