1. Letter or mail with a gift
This is an old method of expressing love towards each other. In old times people had no choice like a mobile phone or the internet. So they used to send letters to each other to express their love towards the one they loved. You can send a big love letter filled with emotions to the one you love as well as a small gift.
2. Skype
Video calling software and applications such as Skype and Face Time have made life so much easier that you will not even realize that you are in a long-distance relationship. Rather you will feel like you are having a good time with each other. Install it on your phone or laptop and keep your love and attraction.
https://www.youtube.com/watch?v=BUjIXUM68KU
3. Send Photo
You can keep love alive in the long-distance relationship by sending a photo.
Nowadays, due to Whats up and BBM, sending photos has become so easy that you will send the photo to your partner and your partner will be able to see it the very next moment. Keep sending photos to each other (funny, romantic or other).
Even after many miles away, love will remain between you two.
4. Surprise Visit
Who doesn't like Surprise? But keep in mind that your surprise should be surprise and because of that the other person will not be shocked.