>>566379751) Observe their behavior. Take extensive notes.
2) Stop! Wait for them to come to you.
3) Let them make the first move so as to not frighten the elusive Nakirigumi.
4) Respond appropriately. Note that sexual remarks will cause them to become slightly aggressive, you WILL be called a perv.
5) False accusations and hyper aggressive/sexual remarks and attitude towards the Nakirigumi will cause them to run.
6) Present some alcohol but not a whole lot. Loosening them up socially makes them more amenable. (Note that still being hyper aggressive at this stage will result in escape)
7) You have acquired a Nakirigumi. Be sure to treat them well other wise you're a terrible person.