A day to observe silence — and eventually to break it — may be just what a lot of LGBTQ young people sheltering at home need.Some may not feel free to be their authentic selves at home, and even those who do are likely feeling the loss of the community they had at school, with gay-straight alliances and other groups, says Soli Guzman, a student organizer for GLSEN’s Day of Silence. “Not having that [community] right now has been very difficult,” says Guzman, a senior at the Athenian School in