I have recently attended a workshop where the moderator asked to play a game with your child every night. The game is simple - Glad, Sad & Mad. I have been doing it over 2 weeks now and its been amazing.
Times when i am tired, my daughter reminds me to play.
The game is basically to make a connext with your child and understand (without being too intrusive) whats happened in that day. Three lines - one good thing, one sad thing and one that made you really mad.

Try it and tell me your experience. It works wonders.