If you meet a girl and ask for her name, don't tell her yours immediately. Let her ask, if she doesn't care enough to ask your name back, she's probably not interested. Keep it moving bro.
If you want sex, make it clear
If you want friends with benefits, make it clear
If you want long lasting relationship that would lead to marriage, make it clear
Most of you just lie, some of you can lie, be clear about your intentions