
1.
Be honest. In a mature relationship, honesty is the best policy. It may be difficult, but the truth will allow relationships to breathe. No matter what happens, no one can ever challenge the fact that you are truthful, which might mean that the other person also gives you the same respect. If something doesn't suit them let them know, otherwise they will not trust your opinion.
2.
Don't brush them off. People often find it exasperating when they get the feeling their partner treats them as an inferior in a relationship. Women are no exception. A lot of People have been taught that the only way to get attention when their partner is trying to ignore them is to act more emotional and be louder until the partner finally surrenders and pays attention to her, even if in annoyance. If People feel they're being given the cold treatment by People who are supposed to be important to them, they get worried. Especially when it happens without you giving an explanation for why this disturbance has occurred.
3.
Communicate. Do not talk their ear off, however make sure that if you have any problems that will affect your mood, they are made aware of the reasons for your problems and mood, so that you do not appear to merely be a fickle and cranky creature. Zone out everything around you when you're talking to them. If you ask them a question, ask them because you really want to know. Remember, the opposite of talking is not waiting, it's listening. Make sure you're actually listening, not just waiting for your turn to talk.
4.
Make physical contact. Girls have much thinner skin than guys, so even a light touch is appreciated. If your girl is a romantic, upon seeing her for the first time in a couple of days, say, "I missed you so much..." and weave your ams around her hips then give her a loving hug. If you have been together with your girlfriend for longer, and have kissed before, feel free to also give light kissed on her lips /cheeks / forehead/neck just to show that you really appreciate her presence.
5.
Give gifts as a surprise. Anyone can buy a gift for a birthday, Christmas or an anniversary. Listen to them when you are out window shopping, and if there is something they like, and it's within your price range, remember it and surprise them with it when they least expect it, for no reason at all. Or pick something up on your way home from work, and tell them you were thinking of them when you saw it. It doesn't have to be big or expensive--a book you know they will like, or a CD of their favorite band are nice gestures.
6.
Mix things up. Go to a new restaurant, try a new nightclub, Ignite your passion with
sex toys,
romantic games or go to a new part of town. Even if you both end up hating it, it's an experience you can share and that's what it's all about isn't it? Creating memories together. Surprise them by doing something offbeat--think less maudlin and more personal. This includes anything from racing them to your walking destination, dancing without music. You two should grow to be comfortable with each other, and do things together without self-consciousness. Ideally, they should never feel stupid around you for wanting or doing a particular thing.
7.
Compliment them sincerely. Find something particular and compliment them on it, but mean it. Don't just say, "You look nice". Say "That really makes your eyes flash", "Your hair cut really suits the shape of your face" or "That makes me want to kiss your neck" ...and then kiss their neck! The more specific you are, the more unique and appreciative the compliment.
8.
Let your partner be. Just because she is your significant other, doesn't mean she is yours, implying any kind of ownership. You can't keep this person all to yourself. You might get jealous if they talk to someone else, but if you trust them and are good to them, you shouldn't have anything to worry about. If their actions do make you feel uncomfortable, sit down and talk, again using nonviolent communication.
9.
Take care of yourself. Don't be needy or dependent. Nothing scares someone away faster than someone they constantly need to remind to do laundry, take a shower, or get to work on time. Be hygienic and neat, set goals, and work hard. You can't be a good boyfriend if you're not a good person.
10.
Be yourself, don't try to be somebody you're not because at the end of the day, if they love you they will love you for who you are.