Alright so I've had some success in the past by DMing girls on Instagram. However that was about a year ago, and now I want to try it again.

I just start adding girls who have mutual followers and some of them follow me back. This could mean they're interested, or it could just be a simple follow back

Those that follow me back, should I text them that same day, or should I wait for them to post some story/post so I can reply to it?