@NonNull
    public CacheVariableList getVariables() {
        if (variables == null) {
            variables = new CacheVariableList(this.geocode);
        }
        return variables;
    }
Show the hint as toast message. If no hint is available, a default "no hint available" will be shown instead.
main/src/main/java/cgeo/geocaching/models/Geocache.java