It is important to consult your organization's guidelines for protection and safety when working with children.  The following are common sense guidelines, they bear repeating.

No private contact.
In situations that require personal conferences, the meeting is to be conducted in view of other adults and youths.

Respect of privacy.
Adult leaders must respect the privacy of youth members in situations such as changing clothes and taking showers at camp, and intrude only to the extent that health and safety require. Adults must protect their own privacy in similar situations.

Separate sleeping accommodations.
When camping, no youth is permitted to sleep in the tent of an adult other than his own parent or guardian.

Separate bathroom & shower facilities.
Troops are strongly encouraged to have separate shower and bathroom facilities for males. When separate facilities are not available, separate times for male and female use should be scheduled and posted for showers.