Tips/advice on finding clients in public (rich hotels/bars) I’m too nervous but I made more money doing this than using ads

Can I get advice please, I rarely go out in public for clientele, however I did it with a friend once in central london and I got paid well off one booking. I just need tips bcs I’m not too great at speaking to clients, how much should I charge for an hour and what should I say? I’m used to doing in/Outcall but I wanna start freestyling/freelance/working in public (where the rich men be 😘)