The key to getting found is to make yourself visible. put bright objects in groups of three in a straight line. This is the international distress signal. If you have an American flag (which you probably wont) hang it upside down on a tree. Keep a mirror or signal fire ready to use/light at a moments notice. During the day, keep a smoky fire (put on green wood) and during the night you want a very bright fire (soft woods).
If you absolutely need to move, take a noticeable item that people will associate with you (like a shirt or "trademark" clothing item) and hang it at about eye level with an arrow below it pointing in the direction that you are moving.