While Google Assistant can respond to voice commands, you still probably interact with it by touch on your phone.

from https://www.engadget.com/2018/10/03/google-assistant-bigger-images-interactive-elements/
https://s.aolcdn.com/hss/storage/midas/d57b0ad9d0d0819dd4cfd31ba04bc211/206710806/google-ed.jpg