if you don't have tounge ring, you can visit your local sex toys store get a tounge ring that hold on to your tounge. Not peer into your tounge but just hold on it.
MOST men love it.
here is the scoop.....good for you
now here for the tips on Blow job
do it how you would normally..... have a long bar just because that is what feels better in your mouth...do play wth the ball on the tip of his penis(use the bottom balland stick it out of your mouth and play with the tip or shaft) my friend told me that he loves the feeling better with th ring then when did not have it.