Your sister

You decided to make your first experiment on someone easy to access. Your sister lives in an apartment not far from yours. You gave her a call and asked her if she'd like to visit you in your new apartment and have a coffee with you. She agreed.

She arrived an hour later. You offered her a cup. She drank it while you described the apartment and the neighborhood to her. You looked at her to see if the **** seemed to have the effect you was hoping for.