As SLF, I apreciate a quick boarding. I don't like queueing and proceeding like a turtle to my seat.
In the end it's about us SLF who are boarding, and who decide how fast and smooth this happens. It's not rocket science, but just common sense. Some tips to improve your (and other people's) boarding experience:
1) try to seperate stuff which you're going keep with you from the rest which is to be stowed in overhad-bins.
I can take off my jacket even before I go through the gate (actually no need to, I usually wear a light comfortable jacket which is goog enough to fight the A/C and has enough pockets to carry my camera, mobiles, paper tissues, peppermints, mp3-player...).
Newspaper/book and a bottle of water I can carry in my hand, I just need to throw my backpack in the overhead bin or under the seat (even better) - done.
In simple terms, think ahead about the stuff you like to access during the flight and put it in the pockets of your clothes, carry it in your hands while boarding, or at least make it easily accessible if it needs to be packed in a cabin-bag/backpack.
2) consider where you are seated
- I usually have a window seat, so I make sure I'm going to be within the 1st quarter of the queue who is going to pass the gate. If I arrive late, I don't take a seat but stay/linger near the gate.
- In case my seat is at the isle, I just enjoy my comfortable seat at the gate until almost all of the crowd has been processed. No need to hurry :-)
Both habits helped me to make my boarding experience as smooth as possible. That's all I do. In case more people try to improve their boarding-expierence (maybe using better/different procedures), this will lower embarkation time boarding at all - and make the cabin crew smile even more ;-)