Ironically, the harder they try the more obvious they become.
They would walk so manly, talks about manly stuff only, ‘straight acting’ and train their body movements such as hands and fingers gestures so they talk like straight people - no sissy quality will be tolerated. They would go crazy on developing their muscle at the gym. However they will do whatever it takes to hide the behaviour. Some of this people can actually be feminine. Somewhat these means ‘less gay’ - a lot better than being a total gay. This people somehow think that being married to a woman, being bisexual or being top only give them a ‘better’ status. Their Grindr profiles usually say “manly to manly only”, “No sissy” or something even more offensive. They openly state how they hate sissy men. This people often become very cocky and over sensitive toward any feminine quality in other men. Those words often become ways of self-loathing gay men to make them-self feel less ashamed of their sexuality. To compensate this self loathing feeling, they often develop some hyper-masculine attitudes. While on one side they are not able to stop committing themselves to gay sexual encounters, on their inner self side, they often still feel disgusted of what they are doing. However, at some point they will have to face the fact that they can not change their desire toward men. Some even try hard to deny it or to make it less obvious.
A lot of gay men are so ashamed of their sexuality.