How do you please your man?

I’ve been talking to this amazing man for about a month now, the vibe the connection everything is there. Only thing is, he’s wanting to do things in the bedroom I was never used to doing in my 5year relationship. Like facials, deep throating, & other things most common guys like. He’s VERY nasty. And I actually want to step out of my comfort zone but I guess I’m a little nervous? I’ve never done that before. Ladies, do you do these things? How do you make sure your man is absolutely satisfied?