What are some new flirting tips to do with my boyfriend?

flirting tips
Kateh asked:


I have been going out with my boyfriend and for awhile. We both have no problem communicating and we both really like each other. We do the basic flirting holding hands, tickling, kissing, etc…
But what are some other tips?
and since he is homeschooled, I mostly talk to him on the phone, so what are some phone flirting ideas?