Why is that straight guys feel pressured not to say or do anything that appear "gay"?

very good question, anything that would make someone appear "gay" would make certain people believe that they are not manly. people now also must be more cautious then ever now because of popular culture making people believe what they do is wrong. you have the right to be intrigued, considering it is a very popular topic. even a hug between two men these days is considered gay...