There's a guy I knew in high school that I just recently reconnected with on Facebook. We've exchanged numbers and texted a little back and forth, just catching up. We live in different cities, but I'm definitely interested. I just want to send a "have a good day" text and say hello, but I don't want him thinking I'm coming on too strong or anything. I haven't talked to him since last week. I'm new back in the dating world. Should I say hello?