Without you even have to make an effort to utter a single word from the 26 alphabet that exist in A to Z to form an amazing catching phrase out of it just to amuse him/her.
All you need to do is exist around them.
It's like an invisible unspoken twirl of conversation going on without the help of voice or body language.
All you need to do is just be there and exist. Your vibe does the job of soothing his/her heart.
That's where you will truly know/feel that your existence matters to that person.
Be a magnet to passion. You will be smiling walking through the journey of life.