Hey Regina, and All
You asked "(ie. enable push notification)" and before I can intelligently answer you, I need to ask do you have an iOS (Apple), Android (many others), or a Windows (Microsoft) smartphone/smart device?
For iOS devices:
1) Tap on the Settings app (icon looks like a gray gear)
2) In the Settings app, tap on Notifications (it has a red icon with a white square and a white dot on the top right corner of the square. Should be in the second group of settings)
In the notification settings, you will find all the apps that support push notifications. They are supposed to be alphabetized but sometimes they will add a space to make the app go to the top of the list.
3) From this list, tap on the app you want to enable/disable/change its settings.
4) From the app's notification screen make sure you have Enable Notifications turned on (the switch should be green)
That is it! Now there are other options (on the same screen) as to how you want the notifications to behave, test these options to see which one(s) you prefer.
Hope this helps
Yes I love these job but I need more info on how to do this