This can end very badly with him misinterpreting things if you are not crystal clear that you are now ready to date him. So, simply say "I'm ready to date you now" and give him a slow kiss on the lips. Don't be vague, don't beat around the bush, be direct. Vague flirting can be saved for later when you two know each other better.
I have a long time interest in psychology, specializing in relationship dynamics for 30 years.
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