Cold approach works really fine for me when Im just direct and on parties.
Not always end up with sex, sometimes yes and some no.
But what works in that case is being quite direct.
I just came and say hi, asked her name... Say she is good looking and would like to kiss her. Some play some games, and if you insist a bit you get it... It seems to me that being direct to the point shows some kind confidence.
If she is not interested, I just say that was nice to meet her and leave.
Also I do cold approach without the need of alcohol, so I dont look like a freaky drunk guy approaching women.
And what I observed on parties is that the guys that try really hard to have the best conversations or the best game, end up frustrated.
Taking care of your body and look matters too. The more I improve my appearance the easier it gets. To the point that in some occasions some women approach me.
The bad thing about cold approach on parties is that it will be hard to end up with sex compared to OLD. I think its way easier when you meet someone online and can schedule a date on a restaurant or even at your place.
I would not try to apply cold approach like that in other environments rather than parties or clubs.
I also have lot of datings on OLD too. I like to use Facebook instead of Instagram and it works quite good. The suggestions on facebook helps to find some interesting women.
The only thing that I dont like that much with OLD or cold approaching on parties is that its hard to find a keeper. So yeah, its great for casual dating/sex... But finding a good woman to invest its difficult. Maybe because of that modern society or maybe because there would be better places to meet women for LTR.