Most conversations here go well. The ones that don't tend to share a shape, so a few habits go a long way.
Keep the first conversations inside JW Meets rather than moving to another app immediately — you can always move later once you're comfortable, and it keeps a record if anything goes wrong.
Take your time. There is no reward for answering personal questions quickly, and anyone worth getting to know will understand that.
Video calling before meeting is one of the simplest ways to confirm someone is who their profile says they are.