My boyfriend would like for me to talk a little dirty to him before/during sex and on the phone... any advise on how to talk dirty to your partner , this is new for me and I am so shy

Tell him to talk dirty to you first, then you will have something to respond to.

It will make it easier and just go with the flow. Make lots of orgasm noises that makes some men horny.

Joe

Think of it as an exercise in creative imagination.