It is very true that men speaks less and do more in any condition and so also in the relationship.
Admiration:
Guys typically love admiration, but there is a catch to this. It has to be sincere for it to work.
Guys seem to have a radar to catch any insincere compliment you give them. But as long as you are telling him something you genuinely appreciate about him, he will be very pleased to hear it.
Appreciation :
Men like to be appreciated and it doesn't take a lot to express this. A simple 'thank you' accompanied by a sweet smile can go far in showing you appreciate whatever it is they are doing for you.
Respect:
Men desperately want respect from the woman in their life. If you are in doubt of this, ask your guy and see what his response is. This is one of the most important things men want from women but will never tell her.
Encouragement:
Men like and need encouragement. They like to know that the woman they love is in their corner, cheering them on. Your belief in them is important. They think that if you believe in them then surely they can accomplish whatever obstacles they are up against in their life. In return, you will find they are always in your corner.
Support:
We all need a good support network and men are no different. When your guy says he's going to try completing a triathlon or try to get promoted at work, support his efforts. Let him know that you're behind him all the way and no matter how far fetched the goal might seem to you, if it's important to your guy, he wants it to be important to you, too.