Yes, you will fit in if your attire is not very dressy. A lot of people dress up, some wear casual wear, and a handful wear jeans. We want everyone to feel comfortable . . . the main thing is that you are there and worshiping!
Pastor Jerry wears a suit and tie each week, but he doesn’t expect YOU to dress up that much; it is his personal preference to dress that way. As he has said from the platform, some weeks he has to wear the jacket because he didn’t have time to iron his shirt! :) (He has also said that if he didn’t wear a tie he wouldn’t have anywhere to clip his microphone.)