Hello Catherine Wanjohi,
I think that too much and unnecessary communication would be to talk to them too peronaly.
Personal life you must put aside. In my opinion, you should only talk to them in a professional way. Not too cold, not too warm. Find the golden line in between, and stick to it. You should, however offered them professional help, and let them know, that they can count on it.
I hope that my answer helped You a little :)