How can we invoke one component from another component with in same repo of stencils

I have one component with
Render(){ return (<Host><my-component><button onclick={}></button></my-component></Host>); }

How can i inkove my-component1 from my-component based on button-click event and pass some parameter?

I have another component
Render(){ return (<Host><my-component1></my-component1></Host>); }

Tried calling my-component1 in onClick function. did not work`