挺朐抬头天生傲搂脖抱腰自然飘
[tĭng qú tái tóu tiān shēng ào lŏu bó bào yāo zì rán piāo]
The first half, 'proudly holding one's chest up and looking at head up', indicates confidence or haughtiness. And the second part may refer to romantic behaviors which are very intimate and casual without pretensions.