Hello Vibrating Obsidian: Well... I think you're correct that bonding with co-workers & supervisors is probably of more significance, in terms of who gets promoted into management positions, than is actual work skills. (Not that work skills aren't important too.) And, to some extent, this makes sense. After all, interpersonal skills are a big part of being a manager. But I don't know if this is something that is worth worrying too much about at this stage of you career preparation.

My personal opinion is that, at this point, what's important is to aim for something you'll enjoy doing & something where there will be management opportunities available, since that's what you ultimately want to do. There's no way, at this point, that you can foresee what opportunities may or may not come your way in the future. And you already understand the importance of interpersonal relations in the workplace. That, in itself, puts you one step ahead of a lot of people!