Sure-fire Guide to Success

Send a meme
Send twenty
Send a pretty rock that reminds you of her when it costs $30 to mail a rock because rocks are heavy
Of course it's $30, the queer experience is liking girls and enbies in other countries exclusively
Paint her a picture of a walrus
Paint her a picture of a snail
Paint your nails and ask her if she likes the colour; make sure your nails are cut pointedly short
Learn her favourite song on the kalimba and record a tinny version through the phone
Ocarinas and ukuleles are an acceptable substitute 
Show her your collection of cute animals that you cut out from magazines
Invite her to a picnic on Animal Crossing
You don't even play Animal Crossing but she does so you do now
Get a succulent or monstera or fiddle leaf fig and name it something she has jokingly said in passing would be an awful name for a kid
Increasingly begin to reference the plant as your shared kid
Take really good care of that plant and give it your love expecting nothing in return