Wear what you want.

It doesn't have to be business attire, but a shirt with a collar, slacks, and shoes that are made of something that had parents will suffice.

 
In the summer I switch to aloha shirts, shorts, and sandals.

 
Of course if you plan to go out dining, you should wear something appropriate for the place you going to.

Generally gets the nod, as that's my usual everyday dress. Every once in a while, I dress in a suit or sports coat to complement the biz casual, if we're headed to dinner afterwards to a nice restaurant.

Dress to blend in is a good approach.

Wear appropriate clothes to fit in. Surf shorts and a tank top would not fit in at a business hotel full of guys in suits. A suit would not fit in at a beach resort. Just look and act like you belong there. Dress comfortably in something clean. What do you like to wear. You don't need to wear something special to see aprovider. The clothes should all come off in a matter of minutes anyway. Personally I live in Hawaii so shorts and t-shirt is normal daily wear. Sometimes that is exactly how I dress for a date. Sometimes I dress up. However for me as "dressed up" is Jeans, and an aloha shirt or polo shirt, and shoes instead of slippahs. (Flip flops to you mainlanders).  And when I say shoes, they are sneakers or athletic shoes.

Be clean, freshly showered, polite and have the correct donation. That is what matters. Some say the girls appreciate the guys who dress ut I don't know how they appreciate them, better blow jobs? More kissing? Extra time? Nah, Not really. I get good service no matter what I wear, and I can't imagine it would have been "better" if I wore nicer clothes, and have never been denied a repeat visit.

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