Bees can't speak like humans with a mouth and words, so they have developped other means of communication which are really surprising !
The pheromones :
Pheromones are a natural substance which is released by the bees in the air, and that influence and communicate their behaviour. To diffuse the pheromones, the bees flap their wings. For exemple : happiness, sadness…
The dance :
No, it's not a joke, the bees' dance is a means of communication. There are different dances (circular dance, wiggling dance…) which mean differents things…
Conclusion :
The bees have developped different means of communication which are very ingenious...