The Africanized honeybee will not randomly sting or attack. However, it will more aggressively defend its hive than the common garden honeybee. Keeping your distance from any beehive will limit your contact with the bees.
It is not possible to identify an Africanized honeybee simply by appearance. Only trained entomologists, using sophisticated equipment, can separate the Africanized bee from the common European bee.
Wild bees and domestic bees are usually present around flowering plants, gathering nectar, and pollen, and should be left alone. A swarm of several thousand bees may separate from an established colony and during this transition, settle at a resting site. They are rarely aggressive, unless provoked, since they have no hive to defend and may move off in a day.