Make it personal. When flirting with a guy over text messaging, use his name once every few texts, especially when you’re saying something complimentary or cute. This makes the exchange of texts so much more personal and intimate.And if you do have a pet name for him, make sure you use that often too.Absence of audio and visual cues.now when to sign off. If you want to flirt with a guy over text, you need to keep it interesting. Once the conversation starts to get even a tad bit boring, end it and tell him that you’ll text him back later.