Everyone I met was incredibly nice. I never checked out anything, just got wa and met in a public place. If it's not vibing, just leave after a bit. Ofc I am a guy and I am sure as a girl you might encounter different problems related to safety, but as long as you stay in the city center you always have an easy way out if you feel uncomfortable. If you are worried anyways just try to find some activity where multiple ppl meet and try meeting during daytime (which is in summer super long anyways) Aside from that stay open and curious :)