Take the lead: First night sex in a couple's life is always filled with anxiety, nervousness, hesitation. For many people, the first time is quite unpleasant. If it is an arranged marriage then it will be very much difficult to open up and be sexually motivated on the first night. Make sure that both of you understand each other and respect one another's feelings and desire's. It is good to take women under your control in bed. Always Men should take a lead on first night. Don't doubt on women.
Avoid asking your partner about their past: Let the bygones be bygones. On First night, understand each other and avoid past taliking about especially on the first night.
Don't be too shy on bed: First night & Sex are always filled with anxiety, nervousness and shy. The thought of making love with your partner may be a first experience for you both but it is not a new thing for human. Don't be too shy on bed.
Don't expect shy or hestitation from women: Women are too shy when it comes to lovemaking. Men feel women are shy on bed and this concept is actually true. If your partner takes the lead or not shy, don't doubt on them. They may seen several lovemaking positions in kamasutra or videos.
For beginning, start giving each other massages, kissing and hugging. If both are comfortable in each other company, go ahead and do it. Your first times, for both you, will be fumbling, embarrassing and awkward, but hopefully they'll be the start of great times ahead for the rest of your lives.