Well, I don't know exactly who you're trying to get to tickle you, because you can approach flirty tickles differently than you can friend tickles. But anyway, here are a few suggestions:
-Poke or tickle them first!!
-Playfully tease the person
-Take something of theirs and refuse to give it back (sometimes this leads to tickles, or sometimes the person just gets mad, lol)
-Put your feet near the person or on their lap
-If you're sitting, stretch and lean back with your arms over your head.
Hmm, that's all I can think of for now. All of these have worked at some point for me
🙂 But it really just depends on the person and/or the situation. Good luck!

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