Whatsapp two blue ticks if you don't open app

[AC Question]

My phone shows a preview of Whatapps messages on the home screen were I can read part of the message.

If I don't click on the message and open Whatapps will two blue ticks show on the message.

So I haven't opened Whatsapp and read the full message but just seen the preview when I switch the phone one.

Will that show the message as read and display the two blue ticks