Girls, Helpful tips to get the most out of wearing panties and leggings?

I am aware some find crossdressing weird, wrong, etc. Not looking for approval so keep those types of thoughts to yourself. Not looking for attacks for judgement. Just please answer the question as asked and with truly helpful details. I'm interested in wearing thongs, cheeky and boy shorts. Leggings also. How are they supposed to feel and fit? Any pointers on picking out the right ones? I like to run, go to the gym and hike. I don't mind wearing other clothes over the leggings, but would love to wear them on their own when possible.

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Ladies, thanks for the tips. All of you helped me. Wish I could MHO all of you.
Girls, Helpful tips to get the most out of wearing panties and leggings?
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