Fin

"The quietest one in the room, is the strongest one in the room"

Well you're prone to passively bragging about yourself, so you should be fine.

Assertive doesn't equal asshole. I am also "well-liked" and "funny" etc and do just fine in IB - in fact, it has helped me immensely.

Don't be an idiot.

Know when to speak up, and know when to listen. Best advice & you'll be fine. Your sports-team experience will be valuable.

This was a stupid question.

LynahFaithful

In my past internship experiences (all non-finance), I always get comments from my bosses and coworkers about how "well-liked" I am at the firm, how I have a "great sense of humor", etc..

How the fuck is this pertinent? Do little things like this help you get through the day or something?

You'll be fine. FYI, most people on Earth are ass holes and/or idiots, not an exclusive strand of personality only exhibited by those in finance.

The most important thing is the ability to get people to really like you and trust you.

Having everyone like you is NEVER a bad thing. People like likable people - as simple as it sounds.

Plus, if you do a good job and people like you, no one is going to think you're being a jerk when you ask for a promotion, raise, etc. and you're far more likely to do well within your company.

Ask yourself this too - do you really want to work at a company where people judge you for being nice? Don't you think you'll do better at a company where you naturally fit in? I think a lot of really smart and qualified job candidates get so caught up in worrying about getting a job at prestigious company XYZ, and don't think about the job where they'll be able to both get the experience they want and also enjoy the culture.