Putting too much effort into those messages is a trap I fell into in the past when looking for relationships on dating apps. You've seen a few pics and read a couple sentences of text they typed - you shouldn't read too much into it for your own sake, and you also don't want to look like you're too eager to jump into something way too fast.

(Looking for hookups on apps is, I imagine, an entirely different ballgame, and I have no idea what works or doesn't work there.)