The g-spot is usually up towards the belly button. Fingers in, curl up.
Don't finger the pussy fingers curled down in the opposite direction...
Pussy eating isn't a race...slow down and be more deliberate
Hair pulling is great...but kneeling on my hair while fucking my face, not so much.
When choking, don't press against the bottom of the neck/upper chest or collarbone.
Gently grab his balls pulling them up to meet your tongue for a lick as you deep throat his cock
Sitting on the floor against the bed, or on need against the headboard are both ideal facefucking positions.