Need some advice for prolonging a conversation long enough at the bar/club enough to build attraction and get her to reply to you the next day.

I have no problems approaching, chatting briefly for 5-10 minutes before things dry up because its a loud club and you just met (not much to talk about) but she’ll still give me her number after that.

Problem is they don’t reply the next day, chances are i just didn’t build enough attraction in our brief chat, how do you do your night game to beat this?