Don’t be afraid to show off that witty humor either–Capricorns can often have a humorous streak that runs on the sarcastic side.
Be cautious that you do not betray your Capricorn’s trust, even if unintentionally. Once a Capricorn guy feels betrayed, he generally is very slow to let you back in–if he does at all.
However, keep in mind that Capricorns are rather traditional - he will most likely not be into role playing, or other things on the kinkier side of the bedroom spectrum.
Your Capricorn guy will be really appreciative if you can take the lead in social settings that make him uncomfortable. Having an ability to be sociable is a great asset to a Capricorn.
This also applies to gossiping about your Capricorns. These guys are really private. If word gets back to him that you have been exposing the secrets of your relationship to everyone who will listen, he might feel betrayed or lose trust in you. Only discuss your love life with the friends you know you can trust.