Mosque Etiquette

The mosque is where your demeanour has to be at its best. These are the few basic things you have to keep in mind when you're in a mosque.   
Turn off your phone/ keep it in silent mode: Nothing is more infuriating than your “Hearts Burst into Fire” ringtone echoing through the mosque. Yes, we all know that, yet there's at least one case every Jamaat. So make sure you recheck your phone before you are entering the mosque.
Pull your pants up: Have you wondered why you feel a cool breeze on your back every time you bow down? Well, the guy behind you knows why. Trust me, it is not a pretty sight. So, do him a favour and pull your pants up, or at least wear panjabi/ longer shirts.
Don't block the stairways: It is understandable that you're too lazy to pull yourself up the stairways to another floor but surprisingly enough there are people in this world who aren't. So, don't hog up the stairways and leave space for other people to go up. And if there isn't enough space in the mosque, wait till the last moment before you stand on the stairs to pray.
Calling people ahead: When you see an empty space in front of you, go fill it up instead of calling the guy standing three rows behind. It'll save time and trouble. It's natural for you to be unwilling to leave your perfect spot under the fan. In that case, just shut up, look down and carefully avoid the stare of the guy in front of you. But, of course, the latter is not advisable.
Don't gossip: Mosques are usually silent. So your soft whispers and muffled laughter bother more people than you think. Save that joke you have to tell your friend for when you're out of the mosque.
Don't leave during Munajat: Unless it's an absolute emergency, do not leave during the Munajat. It's simple courtesy. Just because you were the last one to arrive, you don't have to be the first one to leave.
Don't headbutt: You know how tall you are. So make sure there's enough space between you and the guy right in front so that you don't headbutt him during Ruku. Trust me, it creeps people out.
Don't be the guy who everyone is cursing in their minds but can't say anything just because they are in a mosque.