What are the personalities of these two boys? One behaves very proactively when with girls, and likes to have physical contact with girls, including hugging their necks and holding hands.

The first type of boys may be more confident and bold. They like to take the initiative in heterosexual interactions and express their feelings and wishes. They may actively pursue the person they like and not give up easily. They may also be good at physical contact and like to have close contact with girls. This behavior is not necessarily positive, as it may make some girls feel uncomfortable or violated, so boys should respect each other's feelings and wishes when pursuing girls.

The second type of boys may be more introverted and shy. They may not be good at actively expressing their feelings and wishes, but they like to convey their feelings through physical contact. This kind of boys are usually more delicate and gentle. They pay more attention to emotional communication and expression rather than verbal expression. They may be relatively passive and need girls to actively pursue them, but once the relationship is established, they will cherish and care for each other very much.