they used radios in the helmet of their spacesuits.
Morse code.
-- If they're in the same vehicle, capsule, space station etc., in a 'shirt-sleeve' environment, then they communicate with each other conversationally, by the use of their mouths and vocal apparatus. -- If they're in different vehicles, or separated by vacuum such as walking together on the moon, or communicating with controllers or other people on Earth, then they communicate by radio.
yes emotion can communicate with people !!!
People in Slovenia communicate mostly by talking.
apparently no
They communicate by sign language. Well at least people that are deaf do.
how do george and harold communicate with the cave people
They communicate by talking like regular people...
they pray to communicate with God
They communicate using antennas on their heads
disabled people communicate with sign language, and they read and feel the dots.
people in sweden communicate most by calls