I live in Sweden and here no one talks to strangers. How ever, I am a man in my late 20s and never had a girlfriend. I need to change this.

How do I stop the anxiety and the inner bad talk I have? If a girl gives me super clear choosing signals I will obviously talk and if we are both seated close to each other/next to each other, but what if none of them are looking at me and are talking among themselves?

Usually I ask for a phone charger because then I have to interact two times, once when getting it, and second time when returning it.

but what do I do? I dont wanna embarass myself during cold approach. Thats my main struggle. I dont wanna seem desperate and people looking at me like "oh this guy tries to hit on women"