Here’s what to do:
In theContactsapp, tap your contact card.
If you’ve just installed iOS 17, you’ll be asked to create your Contact Poster during setup.
TapContact Photo & Poster.

type your name (or whatever name you want to appear) and tapEdit.
you could have more than one Contact Poster (you could only use one at a time).
To edit the default, tapCustomize.

If you don’t already have a photo in your contact card, tapContact Photo.
If you do, tapPosterand skip to step 7.
Choose your Contact Photo.

Take a quick selfie, pick from your Photos app, or choose a Memoji or monogram.
Make your selection and follow the onscreen steps.
To create your poster, tapCustomize>Poster.

Crop the photo by pinching or swipe side to side for different lighting effects.
For a Memoji, select a character and make a face.
When the character matches the face you want, tap the blue dot to save it and tapNext.

When you’re happy with the contact poster, tapDoneto save it.
Preview the poster and what your incoming calls will look like.
If you want to change something, tapBack.

If you’re happy with it, tapContinue.
This is now the Contact Poster that other people see.
Then tap the+button to create a new one.

You’ll go through many steps to customize it just as you like.
We go into more detail in ourWhat Are Animoji and Memoji?article.
When you are done writing your message in the Messages app, tap and hold the Send arrow.

A small menu will pop up, offering options such as Slam, Loud, etc.
At the top of the screen, it’s possible for you to choose from Bubble or Screen.
If you choose Screen, you could swipe to the left to see more screen effects.
We have more information aboutsending effects in the Messages appif you are interested.