Will I find anything to learn?

That is up to you.  You will get as much out of it as you put into it.  It is hard for an introvert to get out there and ask questions, but most people can find the answers they are looking for.  If you feel there are areas in your knowledge that you want to grow, you can usually find someone there who will answer some questions for you.  Be willing to step a little bit out of your comfort zone and make some new friends.  Come expecting to learn.  Come expecting to ask some questions.  And, come expecting to answer some questions that others will ask.  What surprises many people is that they actually have something to offer during ICCM.