I'd leave her socks on at first, cause I think it's cute and it'd tickle that much more when she finally got it on her bare feet. But I'd have to start and finish with that stomach and waist, which are just begging to be tickled mercilessly! :
I totally agree with TIcklingisLIfe, gotta rub those beautiful tummy abs down with baby oil, first of course remove anything on those abs, but there usually isnt anything there anyways😉🙂