Sounds good. Yeah I’d place the hand on her upper arm as I said the first word of the opener “hey…” as if I’m trying to stop her on the street and ask for directions,
start thinking of what kind of funny “excuses/guises and ways you could start getting handsy. It’s risky and can be sleazy but if she likes your looks it’s a turn on.
so touch on the upper side of her arm like a lingering tap.
into the interaction using that opener you could say “hey yeah that gear you’re wearing is awesome .. what IS that brand? It’s a great FIT on you

Is that a Lycra blend ? << touch the fabric with your fingers like your feeling it (your really feeling her body of course) , let your hand linger and look her in the eyes as you do so >>
she should get turned on and likely laugh at the cheekiness of the move. It’s pretty ballsy,
another one I used to do was simialr
Wow nice jeans , they really are a great FIT on you (wink + smirk) are they ‘Nobodies ‘ Jeans ( that’s a brand of jeans) .. here let me check! ‘’then I would literally bend down and pretend I was reading the tag on the back of her jeans (just above her ass) and quite obviously check out her nice ass.
While she would laugh and say “stop that !”
very cheeky moves.
tbh as I reflect back now , most of your deduction will be non verbal and moves such as this . It’s signalling .
the most ballsy and basic non verbal signal or opener of all would be to just look at a woman and flash your eyebrows twice up and down , that pretty much says “ hey, wanna fuck me?” Every woman knows what that means. But that’s straight up sleazy,
start thinking and planning that way and do small experiments on and on,