In some countries holding hands would be considered flaunting your sexuality. Every time I see heterosexual people walking down the street holding hands I am reminded that if I did that with my partner I might very well get spat at, beaten up, or at the very least there would be the odd "faggot" exchange. So I don't do it, but if I did I would not be flaunting my sexuality any more than you would be.
If you lived in a world where holding your partner's hand could get you a beating in the street you might show a little more support and solidarity for those whose situation is far worse than yours ever could be.
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