Reposition yourself.
Whether you’re sitting down or standing up, there’s usually a chance to position yourself in such a way to hide what’s going on down there.[1]
Standing up:
Try not to face to the side of anyone. A bulge in the crotch region is a lot less noticeable if you’re facing someone head on than it is from the side.
Sitting down: Try casually crossing your legs. When men cross their legs, the pant material in the crotch region usually gets bunched up, offering cover to your mischievous main vain
Put your hands in your pockets. Putting your hands in your pockets is a perfectly natural gesture, making this very popular. Put both of your hands in your pockets so as not to arouse suspicion, and gently hold the erection close to your body, trying not to move so as to tame your member into timidity.[2]
Cover your crotch region with something. Maybe you have no pockets in your pants (although men should always have pockets in their pants), or it’s impossible to reposition yourself. In this case, look for something to put over your crotch region to hide your excitement. Try covering yourself with:
A book or a magazine. Pretend to lose yourself in an interesting article (just make sure you don’t pick up Cosmo or you could blow your cover) and place the book or magazine over your lap.[3]
A table. If you’re sitting down, casually move your seat up as close as possible to the table.
A piece of clothing. If you’ve got a jacket or sweater, pretend to look for something in the jacket pocket, and then casually leave it in your lap
Do the tuck.
Basically, tuck your erection under your belt, from inside your pockets, using your hands. Warning: Only the most experienced tuckers can do this maneuver while facing a group of people. It’s much better to find an excuse to be alone, or turn away from the group, and quickly do the tuck while no one can see. Tuckers with longer penises should make sure their upper garments are both opaque and securely occluding the entire glans
Create a huge distraction.
Again, this is only for the most experienced men, as creating a poor distraction could actually focus the attention on you, with potentially disastrous results.
When the time is right, say something like: “Wow, look at that man who’s juggling cute little puppies while riding on a unicycle in the distance!” and run away when everyone’s turned their heads.Using a hoodie can help hide it if you have front pockets
Source: wikihow.com