Description The personal preference of how you/people identify themselves as individuals.
Characteristics This can be through, for example, a female appearing more masculine in their appearance, mannerisms, behaviour and interactions with others, choice of clothing etc.
Description and Characteristics Sexual orientation describes if anyone is sexually attracted to anyone of the same sex, different sex, and people of either sex. Terms used gay, lesbian, homosexual, bisexual, heterosexual, pan-sexual, asexual.