I have a hard time saying something to guys when I met them and they give me there number. What do I say when I text him every morning?

Now days, people are so used to texting that when a normal conversation comes up, i.e. actual voice communication, we can sometimes get flustered. No worries! Just be yourself and have a casual conversation with them. Don't put any undue pressure on yourself, enjoy some casual, "Hey how are ya?" type of exchanges, and see where it goes from there.

Good luck.