From hearing so many different opinions I am curious to know more about the difference between GFE and PSE. I’ve been told that I do both for years but o thought it’s just called good service (I don’t put a name on many things) I am interested to know more if anyone can elaborate

I would generally charachterize GFE as more of a friendlier, welcoming and passionate encounter whereas, PSE is more vocal, louder, and based more on the physicality rather than the passion. So its def about attitude, imo, but personally I think certain sex acts separate the two as well.  
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GFE is a bit more romantic, with deep, passionate, lengthy kissing, hugging/snuggling, with the intercourse more of a slower "love making" style, for lack of a better term.  
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PSE is more often associated with harder core, more physical, typically out of the ordinary sexual positions, which usually includes dirty talking, CIM/swallow, anal, etc. Of course some of these things will cross over, as again, they are very vague terms.  
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Generally speaking, I would view GFE as more like a real date with great convo, laughs etc while PSE is more centered solely on the more intense sexual/physical aspects.

There are no strict or generally accepted definitions of either. Everyone has their own opinions on what these terms mean.

GFE tends to be more clear. The variance and expectations don’t seem to differ quite as much. DFK, BBBJ, and covered full service are almost always in this package. FIV and DATO maybe but are more YMMV. Small talk and cuddling are also usually on the table. I think for many men, GFE was the evolution from the days that not kissing at all, or at least not with tongue, seemed to be more common. It took having sex without connecting to a more intimate place where it felt like you were paying to make love to a girlfriend, and not just having hooker sex.

 
PSE has more variance and lacks clarity. For some, it means mixing in BDSM, and nothing more. It might mean faster paced and harder fucking. It might involve skull fucking. In some cases, it means Greek is included. And, there are cases where it means BBFS. I find PSE to be more frustrating because it varies too much. When providers say they offer PSE but refuse to reveal their menu, I’m typically not interested in paying for that service because I have no idea what to expect.

If I had to break it down to one specific sexual act I would narrow it down to anal.

As a bonus I would add CIM & if she swallows she's a winner. 😋  

YMMV is the golden rule.  

You have 175 reviews over 14 years and are rated as 15th in your market. You clearly know what you're doing... and are good at it.  
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Would you like help rebranding, or updating/word-smithing your offerings?  
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FWIW I also am not a fan of label/rule/upcharge specific offerings and consider discovering what a new friend enjoys part and parcel of the FUN this demimonde offers (winking at you, RR😘).