Silent communications rules in the Spice Caves

WIP - Summer Camp quality. This will continue to be edited during July and likely after the prizes adjudication. Please do not consider for category prizes. CW: mention of sexual themes and BDSM practices

Because of the nature of some of the interactions in the Spice Caves, Yarik employed a number of standardized silent means of communications that he expects all people who uses the facility knows before they start any session in the caves. If one of the participants is unable to speak but has free range of movements in the hands: Two taps of the hand on any part of the body: Risk of immediate harm. Stop immediately and remove any impediment to verbal communication. One snap of the fingers: Stop the current action and give the participant a breather before continuing or move to a different activity. Twice slowly closing of both hands: I am enjoying this, continue like this.
If one of the participants is unable to speak and has also their hands blocked:
Twice blink of both eyes: I am enjoying this, continue like this. Once blinking of both eyes and keeping them shut: Stop the current action and give the participant a breather before continuing or move to a different activity. Blinking of only one eye: Risk of immediate harm. Stop immediately and remove any impediment to verbal communication. Both these methods obviously require the constant attention of the top to the eyes and hands of the bottom and should be reserved to situations where all the participants know each others well and trust each other.
When the participants are hauled at the top of the Cave's rafters, they are usually equipped with small objects that they can hold and let fall in case of distress, even if their voice is unimpaired, to avoid instances when the combination of distance, acoustic of the room and psycho physical situation of the participants might make the communication of distress difficult.
In the Caves it is expected that all the participants to a scene make themselves acquainted to each other's reactions in the expected situations that might arise so to increase the ability to recognize early signs of distress, arousal or pleasure.