A few small habits make a big difference in how good your calls are, and how many people want to connect with you again.
Do
Introduce yourself briefly, listen as much as you talk, and be upfront about what you're into. Respect matters even in an anonymous call.
Don't
Don't pressure someone who wants to end the call, don't assume everyone wants the same pace you do, and never ask for identifying details someone hasn't offered.
If a call isn't working
It's fine to hang up and try again — with thousands of callers on the line, there's no shortage of chances to find a better match.