Im 17 and thinking about getting a summerjob for the summer... obviously

But apart from the money, I see it as a viable opportunity to improve myself, maybe my inner game, conversation skills or AA etc.
What do you think would be viable summerjobs to help improve your confident, social skills etc? A summerjob preferably with low requirement of experience and such will be a plus.
Take also in mind that I'm a newbie from top to bottom and have room for a lot of improvements

Please suggest a job that would fit if you can
Thanks in Advance guys!