First of all you must be situated in a burbling zone, there for, no one can moan at you for burbling because you are in a burbling zone.

The first sign of being able to burble is when someone moan's at you for burbling but it wont be so bad if you are in a burbling zone

Next, the burble dose not necessarily mean it has to be in English or for that matter any kind of human language at all, because the burble-e that you burbling at shod be to F-ing wasted to realise what you are saying or burbling anyway, ya dig?

To practise , it is ideal to burble to a jerbal because when you burble to a jerbal the jerbal dont get a herbal fur-ball when it burbles

Burblogrophy to be a professor of burblogrophy, you have to have a degree in burblophonics or better still, stereophonic burblophonics or something similar, ish

silent burbles are the hardest to burble because when you burble silently you dont tend to burble more than slurble. Theas are best practised in a quiet room so no one can accuse you of cheating thay are also well achieved doing them with your mouth firmly shut whilst burbling with your mouth shut you can then call it burblums not to be mistaken for bumbling's witch is completely different