I really suggest waiting til it's your turn to look at your cards. This makes you watch the other players act before you, and it allows you to consider the situation (your position, players left to act, actions of players before you) before you look at your cards.

When I look at my cards live, I'm always careful to repeat them to myself twice in my head so I won't forget the suits. This gives me a pretty consistent pause before acting and also prevents the really obvious tell of going back to check for suits on a monotone flop.

I personally find that trying to hide tells by acting motionless doesn't work well for me. I have much more fold equity when I'm talking and smiling. I'm always careful to treat my opponents like my friends when they ask for chipcounts and stuff. I think this gives me more fold equity against people who are looking for these kind of things. If nothing else, it gives me something to think about during the rather awkward waiting period.