I've actually tested certain routines out on friends before going to strangers, be it speed seduction patterns or just standard fun routines like The Cube. The trick is the same as when dealing with strangers. You're not trying to seduce them when you're running DHV's or cold reads etc, instead you're genuinely curious about what they say.
I'm not saying I'm an amazing PUA yet, but I will say I can run certain routines like The Cube and Rings routine as well as anybody, strangers, friends or otherwise and it's because I've learnt the right way view running those routines. I'll look at a friend, or a strangers fingers and say, 'Do you always wear a ring on that finger?' 'Er, yea...' 'Ha, a friend of mine told me that whatever finger you have a ring on says what type of personality you are. I don't know if it's true, but let's see for fun.... Do you know you're greek Gods at all?......'
I encourage you to test stuff out on female friends because it's a good way of teaching yourself to integrate routines into your natural persona. Hope that's helpful
