First night is always anticipation and aspiration fully loaded. But one should go about first night experiences carefully and in a matured manner.
A rocking sex
Come on. Think practical. Both of you are too tired to do anything after all those rituals and the reception. So give each other some benefit of doubt to each other and not expect any rocking performance. Try to be happy even if it were some nice sessions of cuddling and intimacy.
You need to experience orgasm
This also is like expecting too much from each other. Because giving each other the climactic pleasure comes after some time. So allow yourself to learn more on his or her preferences and turn on points and wait a bit for the momentum to pick up.
You need to fake an orgasm
This also is avoidable. Since this is going to be the beginning of your journey to the most intimate moments, instead of faking all types of ecstatic emotions, just be romantic and talk about your preferences and know-how about sexual positions.
You should talk sex
First night is meant to be an ice breaker. So, even if you do not talk sex it does not mean that your sexual life will not take off. In reality, it is not like that. Enjoy those moments together and just chill. Try to spend some cozy moments together and try to figure out each other's likings.
It ought to be the man first
This is another myth. What if the man is expecting some initiative from the woman. So, be open and share love and not preconceived notions that you have been fed with.