Discuss with your girlfriend. After all, she knows her parents best. Alcohol and tobacco are not recommended, which is bad for your health. Can be high-grade health care products. If old people have hobbies, they might as well invest in them. What matters is your manners, and: carefulness, love, and love for their daughter.

3. Discuss with your parents or grandparents. They are all very experienced. Old people know something particularly necessary.

It's good.