I need advize

Sooo today this hot person from my sci class asked 4 my instagram and like Ive talked w/ them once before but they seem really nice and cool and we seem to get along well. Wee exchanged intas andd they said that itz cool that i cosplay and that they were gonna stalk my accountt (on ig) and the 1st time i talkd 2 them they said that i was prettie. Thing is, I haven't interacted w/ them much but like i feel like i might have a chance w/ them romantically. idk what to do so lmk.

byyyyee