I don't think so. But if you'd like to talk to someone softly or kindly, you can use "ぼく" instead of "おれ", as "おれ" sometimes imposes others. If you make it gentler and politer, you'd better use "わたし". (or わたくし) However, generally, both "ぼく" and "おれ" are applicable for any casual talk. Actually, Japanese language has a number of words describing oneself and others. It depends on the relationship between you and the other one.