For example, kissing might be an early step in the American pattern but a relatively intimate act in the English pattern.
Japanese courtesans had another form of flirting, emphasizing non-verbal relationships by hiding the lips and showing the eyes, as depicted in much Shunga art, the most popular print media at the time, until the late 19th century.
The person flirting will send out signals of sexual availability to another, and expects to see the interest returned in order to continue flirting.
Flirting can involve non-verbal signs, such as an exchange of glances, hand-touching, and hair-touching; or verbal signs, such as chatting, giving flattering comments, and exchanging telephone numbers in order to initiate further contact.
Some couples set up rules and boundaries for their partner so one will know what's accepted and what's not.