Facebook licenses its customers to attract with their friends reliably. You can know who's online by observing the green spot before the customer's name under the discussion parcel. Regardless, if you can't see that, it starts, that either the customer is isolated or you have defenceless sign strength in which case, you'll need to encourage your accomplice to come on the web or go near the switch for better web transparency, self-luringly. Regardless, in case the issue doesn't get enlightened, by then contact Facebook customer service