>>124567
>whish tipe of kchewing gum do you recommend me
I chew Zellies Fresh Fruit flavor because I don't think it has anything bad in it, at least compared to convenience store-tier brands with artificial flavors and shit. It tastes good (xylitol, tastes sweet and is good for your teeth) but the flavor lasts maybe 30 sec. The gum itself is small and soft so unless you put a few pieces in your mouth at once it's not that good for jaw workout. Never had jaw pain from gum.
My recommendation for jaw workout is to eat a big bowl of raw steel cut oat muesli as part of your breakfast every morning. You can also point your chin toward the sky and pull your jaw up, stretching the skin/muscles around your jawline. Then turn your head to each side and repeat.
>how do i train my tongue?
Why? Anyway- eat cunt, obviously.