I've been regularly visiting Vietnamese Bikini/Lingerie shops 2014.
The majority of shops are in Garden Grove and San Jose, California and are essentially man caves with music blaring and sports showing on wall to wall televisions.
The adult entertainment value is very low at most shops where you have mostly young Asian waitresses dressed in bikinis or lingerie with stripper heels will sometimes socialize with customers.
However, there are "special" shops where at least one of waitresses will pour tea topless and/or bottomless for extra tip (usually $1-2) but this is still almost no mileage as the most you might get is a graze on the tits or the ass (some girls are high adept at blocking attempted grabs and grazes).
Some of the special shops have a waitress or two who air dance, again very low mileage, for extra tip (usually $1-2).
There are no extras as the topless/bottomless tea pouring and air dances are for all customers.
One shop is Garden Grove (Santa Ana) sometimes provides waitresses to entertain clients in the shop by drinking and sometimes, lamely lapdancing.
In San Jose there is a milf coffee shop where some of the waitresses will greet regulars with a "handshake" and allow a little bit of groping, one allowed me to quickly FIV, for extra tip (usually $5-10).
OTC is rarely available, though I have gone to dinner, lunch, and parties with plenty of coffee girls, but when you find ones who are DTF it's not P4P but more about cultivating a relationship and being at the right place at the right time.
Most of the waitresses are not interested in stripping or P4P but are lured by the easy money.
The shops serve more as a hangout or warm up to the SC but in no way does it approach the entertainment of a SC.