Push and pull is about taking the girl on an emotional roller coaster and make her connect to you. Looking back at Mystery Method, it was about punishment and reward, as if trying to teach the girl how to behave. If you are in a playful state (as you should), you will joke around with her and say things like "come here baby, you are so cute, I just love how you smile" and hug her. That is a pull. In an appropriate moment, when she says something remarkable (like "I have a boyfriend and we are engaged"), you may as well litteraly push her away and say "get outta here, I thought we had something special going on, you are not worth my time" with a smile. That is a push. Note that the smile is important, as it indicates that you are still friendly and playful, and she has a chance to fix things.

After pushing, if she cares enough she will feel bad, and hopefully she will come back trying to fix things to feel good again. That would be an IOI and should be rewarded with a pull. But don't respond equally everytime she comes back. A bit of randomness makes you more interesting.

Unfortunately I don't have any infield videos to share... :/