Many people have the same experience. You've landed the right mindset for a brief time and your outer game improved.

I believe the mindset is mostly a function of personal expectations about your interactions with women. When you expect the interactions to go towards your desired direction, you're more likely to hit the mindset. Problem is, you can't make yourself expect positive results just like you can't make yourself expect coldness when you touch fire.

The most straightforward technique to "switching" this mindset on is to prove to yourself, on a conscious and subconscious level, that you should expect positive results. Gather your evidence, by achieving easier, related goals. For example, if you're in a nightclub and not in you preferred mindset, try achieving the following:

• Ask 5 people for a piece of gum or the time.
• Introduce yourself to other men or women you're not interested in
• Ask a good looking female friend to join you
• Call up a female friend and have a chat
• Make and hold eye contact with 5 girls (without approaching)

You can probably come up with small goals yourself too.