Informational Interview with TMT IB Global Director

This is an alternate account which I just created in order to keep my anonymity

Here is my situation:

I have an informational interview set up with the TMT Global IB Director for the BB that I am at. I need advice on positioning myself to get a SA internship for next summer. I am currently a PWM intern at the firm (rising 3rd year) and he happens to work out of the same office. I have always interacted with him (minor conversations) but never knew his status until today. When I asked him for "5 minutes of his time to hear about his career" today he said "absolutely" and waved like it was no big deal. Please tell me how you guys would prep for this. I legitimately think this could be life changing for me and would like serious advice.

I really could use some help on this one guys. Thank you.