I like to here a thankyou, I always thank DH when he does things around the house and he always thanks me. It's nice to know your hard work is noticed and appreciated.
Have you read ' The Five Love Languages' it's a really good book that I read before we got married, DH read it too. It talks about how everyone shows and receives love differently. Some ppl might find gifts show them love or that words of affirmation are how they feel loved. Everyone has a diff Love Language and if yours and your DH's are diff it teaches how you can show that person how much you love them through their love language.
Might sound a bit corny, but I found it really helpful, if you re aware of what makes your partner feel loved and appreciated you can do little things that make them really happy.
This is probably off track from what you're talking about but def a good book to read