What is indecent for men
Very short pants in public or commercial places like malls and public offices

Chest nudity
Ezar in public places (Ezar is the local Emirati male underwear)

What is indecent for women
Clothing that exposes the stomach and back Short clothing above the knee
Tight and transparent clothing that describes the body

Rules at public beaches
All swimmers should wear conservative swimwear that is acceptable to the culture in Sharjah
Do not wear swimwear in streets or other public places

Living together
It is not allowed for a man and woman who are not connected by a legally acceptable relationship to be alone in public places or in suspicious times or circumstances.

Enforcement

Police, designated employees, security officers, and building guards are ordered to observe, coordinate and ensure adherence to these rules of decency and public conduct.
Police only enforce these whenever a warning is not sufficient.
Public employees are to provide instructions, advice and clarification to the violator, keeping goodwill as the basis in the interaction. In case of negative response, the police may be called in.
When violators of this code seek service, it may be refused and they should be made aware of the regulations.
Source: Sharjah decency and public conduct rules and objectives official brochure