force it out. I'm all about maximum audio. Although there are downsides to this practice, since sometimes, it turns out not being a fart at all.
The best farts are the ones you know are vile.. you know the ones that are small and silent but very hot on the ring piece? I let those out around people I don't respect just to see the reaction... yeah...
That's how mine have been lately. I'll just let out a silent one and I'll know it's gonna stink bad, so I leave the room with a smile and everyone else is left behind to discover this ungodly stench for themselves.
One day Daniel farted in the shower. He knew it was going to be bad, so he opened the window directly afterwards. Even with the window open, it was enough to make a moose choke.