My experience is that some will get over it and some won't. Most of my fish crowd the closest corner of my tank any time I am in sight. In some respects, it is detrimental because I would prefer to watch them swimming around acting like fish on a reef rather than a bunch of starving beggars.
When I do maintenance or other things in the tank besides feeding, some of the fish just hang around my hands, others swim about but keep their distance, and one or two hide back in the rocks. If one is skittish and darts away, the others will do so as well but they get over it quickly.
Give them time, and your bolder fish will get used to you and stay around you.