Hard to get
If someone is playing hard to get, they will be excited when you chase them.
On the other hand, if someone is pushing you away. Chasing is the worst thing you can do, because it is smothering.
proof that they are playing hard to get.
If they are overly excited about other people when you show up, to make you jealous.
They find tasks to show off how skilled or able they are, while you are around and available.
Evidence that you are being pushed away.
They are not excited to see you.
They find chores to work on, instead of spending time with you when you make yourself available.
Subtle differences, but very important