Hi Joc,

The issue with the shower is that most ladies here would prefer if you had a shower before activity begins. As for your long hair don't let it get wet.

As for what to say on the phone just say can I make an appointment to see you at such a time on such a date. As for being nervous just dial the number and talk. What's the worse that can happen? She says no ....... which is unlikely to happen
Tell her its your first time and you are a bit nervous. She will treat you even better