Information Session Updated Opinions?

Hi all,

I dug through the forums and the only information I could find on Information Sessions was from 7-11 years ago.

What are the general thoughts on attending information sessions hosted by the company? What's the expected dress attire? What are the good questions to ask, and what are the faux pas to avoid? I have an info session coming up with Northwestern Mutual at their NYC offices, and want to make sure I'm not treating this as an informal meet-and-greet thing when it's not,or vice-versa.

As a student with a 3.6 GPA and an AAAS in Business with a secondary certification in International Trade, currently earning a BBA from a semi-target school, I'd like to make myself more well-represented than my resume may suggest I'm worth. So also if anyone has any tips in mind for how to leave a great impression given my details, that'd be great as well!