The first instinct is not always too obvious, actually. Many people find it easier to share things pertaining to their second instinct. It feels less "personal".
I can tell she clearly is concerned with looking sexually attractive, and embodying the "Strength/Beauty" ideal of the Sexual 6.One may conceal the needs of this instinct and instead put the secondary instinct on display, since primary instinct serves as a greater source of anxiety than the secondary instinct. (...) The application of secondary instinct is creative and even more exhibitionistic than that of the primary instinct. While primary instinct is constantly monitored and held in check, the secondary instinct is allowed to roam freely. (...) In situations where people are not sure that their primary instinct will be welcomed, they often extend and offer 'products' of their secondary instinct by conversing on related topics. Sx/sp and so/sp types may talk about health, monetary, domestic, or culinary topics. (...)