1. Expect to do as much talking as juggling. It makes them feel special.

2. Avoid 'big' tricks that attract attention, particularly if working in a small space. That way, you'll be able to repeat stuff without worrying that others have already seen it from afar. Save the 'big' stuff for your show.

3. Try not to plan too much in advance. Instead, try to feed off of your current audience and the immediate environment. People seem to like it if you're obviously tailoring your performance specifically for them.

4. Audience interaction (i.e. getting them to do stuff) is great. However, just getting them to juggle 3 balls is often not the best way to go about it as searching for props under people's legs is rarely dignified.

5. I'd suggest trying to avoid a "look at me - aren't I great" persona. People often find this a bit tiresome. It's also setting yourself up for trouble if things don't go so well.

Also, remember that many people find fallibility endearing - if you do something amazing, then screw up, your audience will be able to both admire your skill and identify with your human frailties, which makes them feel very comfortable.

6. In the right situation, stilts can be invaluable.

7. Consider getting some sort of easily transportable carrying case, so that you can keep a varied range of equipment to hand.

8. Although I'm completely unable to do this myself, consider learning some balloon models. This can work very well with a wide range of audiences. However, be sure that your employers are happy for you to do this - if they've booked a 'juggler', they might get upset if you're not actually jugging.

9. Try to do the unexpected. You'll be able to better hold people's attention if they haven't already guessed what's coming.

10. Think long and hard about your costume. It really does help a lot if you can create a favourable first impression.

The main impression you need to create is the one that makes people think 'Oh look, that oddly dressed person must be some kind of entertainer'. You need to clearly identify your role, so that your audience know which bits of their disbelief to suspend. Wearing a spangly waistcoat may be hackneyed to hell, but it just about does the job in this respect. Personally, I very frequently wear theatrical make up for precisely this reason - people are much less likely to question my presence, and are therefore much more likely to accept whatever bizarre crap I send their way.

Oh, and have fun. Lots of it. That should be Rule Number One, shouldn't it?