How to be friendly with a girl?
Just be yourself & speak to her the same way that you would talk to any of your male friends. Just pretend that she's just a lumpier friend and you'll be fine
Talk to her and ALWAYS make her laugh but not to much.
Have her come over watch some movies snuggle up together and then some girls u could wrestle with them dont go all out though
Tickle her forbidden zone. See where that gets you. ;)
It's not hard to be friendly with them, just treat them nice, keep them in a good mood, do things they would like you to do