How to flirt over phone calls and video calls?

I [23M] met a girl [23F] 2 months ago and we went on 2 dates, both went really great and we had plans for a 3rd one as well that fell through because of the quarantine in our city. We've been texting pretty frequently and have probably chatted on facetime 4-5 times over the past 1.5 months. It's pretty clear that we both like each other and will see each other once the quarantine has been lifted.

The issue is that I'm not very good at flirting over text or video calls. All of our texts and calls have some sort of banter but its pretty hard to give compliments or find ways to be affectionate virtually without coming across creepy or disingenuous. We don't text that frequently (maybe 1/day) and one of usually suggests having a call every couple weeks. Do you guys have any tips on what I can do to make it more explicit that I like her besides initiaiting and holding good conversations?