When creating a watchface, how do i make an object clickable?

Hi there.
Im just started trying to make my first own watchface but im stuck right now. How can you make some objects clickable on the watch? If i press the date i want the calender to open and other things. I hope someone can help me with that :stuck_out_tongue:

edit: I think its called complications

Answering your question: you donā€™t.
In its current version, Facer has no clickable options (other than switching faces).