The published photos and the description come first. After that, check the working hours, because they mark when it makes sense to write, and the format, which defines whether she hosts, travels or does both. If something isn't clear, ask at the start of the conversation and not once everything has been agreed.
The service list makes the difference between one ad and another obvious straight away: short meetings, longer dates, massages or the warmer treatment advertised as a girlfriend experience. Some girls include companionship for outings. What isn't listed isn't included, and asking for it on the hour is never a good idea.
Contact is made on WhatsApp, directly with her and with no middlemen. Besides hosting in the neighbourhood, several also travel to your address or to a hotel in another area, handy if you'd rather not navigate streets that repeat themselves. Ask from the outset: the answer shapes the rest of the arrangement.
In the low blocks the stairs carry sound and the corridors are short, so arriving is a matter of walking in and going straight up, without stopping at the door or checking your phone on the landing. With the address confirmed beforehand, the stretch between pavement and interior takes only a few seconds and nobody crosses paths with anybody.