Bees also see in the ultraviolet range. If the pattern lights up under black light, it is particularly interesting to bees. Be very careful with food. Something as small as a forgotten raspberry jam stain on a sweater can be a problem. Tell kids to pretend they're statues.
Rapid movement startles the bee and encourages stinging.
Try blowing gently on the bee. This can encourage it to move on while not startling it. Bees will of course be frightened if you step on or near them. Shoes don't make them less frightened, but protect feet from frightened bees. Wear long pants when you know you are going to be in an area that is likely to have bees in it, such as a field.