This is from a panel I attend about a year ago. Hope my notes will be of use.

• The first opening pages of your book sets the tone of the book/story
• Have emotions attached to the characters first meeting will also set the tone of the book.
• To motivate readers to become interested in your characters those characters need to feel like real people.
• Consider the character as a real hero of the own story, both male and female.
• Characters need to know the details of the other characters.
• Have full-fledged characters, including flaws and have something about them that is likable.
• As something about the character that the reader can relate to, or understand.
• If you go to have romantic tension. You need to set it up.
• You need to establish nuances so that the developing relationship can be realistic.
• Dialogue can be a good way to display attraction.
• Humor makes things more memorable.
• A character laughing at a joke is a sign of their attraction that person.
• Read a lot of romance.
• By language can display attraction.
• There is a natural progression of touch, beginning with hand-to-hand contact.
• Character start thinking of another character is a sign of attraction.
• Two years p.m. or she worries about him.
• Avoid having me and respond in a feminine way to circumstance.
• Man’s thoughts of very simple. They do not naturally ask how woman feels.
• Men don’t say much about how they feel,
• No man wants to be the character. Character in twilight.
• Physical markings: you can display of romance by the two characters simply having a private moment during an action scene.
• If you have romance and another genre you can combine adventures science fiction/romance etc.
• Readers of romance are when the men want to be the guy in the women want to be the girl.
• Emotional fulfillment can be achieved by other ways than just sex.
• Went to characters join to struggle that can provide emotional satisfaction without involving sex
• Emotional satisfaction can satisfy the reader.
• If a guy is willing to show weakness in front of a female that provides emotional satisfaction.

Have a suggestion to add to the list? Please do so in the comment section of this blog.