in every youtube video that i've watched, the way the pua tells her his name is very...cocky. it sounds like the guy is in love with himself. "I am Jason" the way they say it, it sounds like they are saying "Hi, I discovered the cure to cancer"
sounds like they are in love with themselves.
Is that how you are supposed to say it?
How can I say it the same way? I know the answer is "be more confident" but is there any games that i could play in my head to sound like I am in love with myself? Like keep telling myself "I discovered the cure to cancer. I am the man. I am the man" ?

In every succesfull person is a huge narcissist. Love yourself and truly believe you are the shit yet remain humble. Don't overdo it.

hey man, have fun! enjoy yourself, be playful with it.
take some time to picture all the times in the past that went well, where you felt confident, had a great time and were successful. make a mini movie in your head and imagine you are there. feel the feelings you felt, and approach with this!
makes a difference!