Develop the fine art of winking. Wink at her from across the room. Wink at her across the table during a meal out. The wink is an unspoken intimacy and it is very flattering to the recipient. Let other women see you wink at her. They will tell her how lucky she is to have a husband who is so attentive, always holding her hand, opening her car door, putting his arm around her, calling her his bride, etc. The more that others tell her she is lucky, the more she will have to think about the fact that the other husbands don't seem to do this for their wives.
Anything you can do to make her blush, even if it is in front of strangers (not people she knows.) At the mall, at a restaurant, etc., you can say to the clerk or server, this is my bride of xx years, isn't she absolutely beautiful?” They will of course say yes. Start out by doing this with older women who will find you charming. Then try it with a male, but change the question to, “Aren't I a lucky man.” As a member of the brotherhood of men, unless he still has pimples, he will say, “Yes sir, you certainly are.” You have now elicited a compliment from an unknown male and she has heard it. Is he just saying that to be polite, or does he think it for real? What a total rush for your wife. Even if she protests, your goal has been accomplished, and you can say, “I can't help myself.” It may have been a long time since she thought of herself as a prize.
Make a reservation at a charming bed and breakfast within a short driving distance. On a Saturday afternoon, when you know your calendars are clear, tell her you need her to accompany you on a commonplace errand. Have a bag packed for her in the car trunk. No pyjamas necessary, you simply forgot to pack them. (A toothbrush, cosmetics, medication, change of clothes.) Then drive her to the hotel and check in. Each time she asks, tell her it is a surprise. When you arrive, tell her she needed a mini vacation. Then stroll along a small town and browse antique shops, or something she would enjoy that you would ordinarily hate doing. Be a really good sport about it. Have reservations someplace quiet and romantic for dinner. When you get in bed, tell her how much you love her and you enjoyed spending the day with her. You know how tired she is, so if she wakes up in the night and wants you to make love to her, simply kiss you awake. Whether or not there is intimacy this night is her call. This is her vacation. Your goal is to show her that it is not just about sex, but also about enjoying time together.