We feel that what you wear is not nearly as important as what is in our heart, and your willingness to allow God into your heart.  The easiest answer to the "what to wear" question is to wear whatever you feel comfortable in.  You will see members show up in shorts, blue jeans, business casual, and even suits.  You will not be judged for what you wear.  On days when we have communion (1st and 3rd Sundays) most members will dress up a bit more than normal, but again this is not required.