The new friend system for Pokémon Go has arrived. You can do many new and fun things to interact with your favorite Pokémon companions as you play.
A great thing to do together with you and your friend is to play. To do this, you need to click on their icon in the lower left corner of the screen and then hit the Play button. Doing so will take you to an AR environment anywhere on the phone.
Now, there is a specific thing you need to play with your Pokémon. It's not touching them to make them do a quick animation (which is hard to say). What you need to do is pat your Pokémon.
To do this, you need to keep your finger on the screen and go back and forth on them. Visually, your Pokémon should be extremely happy with the movement and time you spend with them. You will also notice small sparks popping out of their body, indicating that it is working.
Eventually, you will see a heart appear above their head and have played with them for the day. Doing so increases their overall happiness towards you and develops your relationship as a Pokémon and Pokémon trainer.