When you open a girl who is attracted to you, she tends to answer questions at least semi-enthusiastically, asks YOU questions, smiles, has somewhat 'open' body langaauge etc

If none of them things are in place when you approach a random girl, MOVE ON!

Don't waste your time trying to magically turn it around.

I've even seen guys try to carry on with pushpull lines and 'attraction material' even after she's literally said 'sorry, you're not my type. Have a good night!' soon after he opens lol. Never seen it work. Never even seen it work with 'professionals' (including in infields). I was in a large telegram pickup group recently where people, including professional coaches, share infields, and the pattern of it being very obvious within 10 seconds whether the interaction would go anywhere or not was impossible to not see!

So, have some self respect. Your job is to find the girls who want to be seduced by you. Do'nt waste time on girls who clearly aren't attracted/interested.