When socializing in a large$-$group setting:

Don't join groups that are already engaged in conversation.

Stay close to the refreshment table so it is easier to refill your plate.

Stay with the group you first join, because leaving the group would be rude.

When you first join a group, listen for a few moments to learn is being talked about; then add your own comments.

Question $5$

In conversations, a comment with a hook:

Helps to capture other people's attention so they will listen to what you are going to say.

Pulls other people into the conversation to ensure better turntaking.

Is risky because it might offend people.

Is a technique to help you be more assertive in conversations.