How do you know if your best female friend is in love with you?

If she likes to spend lots of time with you an likes to be close to you often and asks person questions only in a non direct way or if she likes to do things for you like get you presents an likes to touch you or move your hair outta your face or do strange things other girl friends wouldn't do. Or you catch her looking at you a lot or copying things you do like hairsyle, clothes etc. But be careful she might just be looking up to you because she wants to be like you or envys you or is just looking up to you as a roll model even if she's older or younger than you so just be careful don't be afraid to ask her how she feels about lgbi acts or bring up a indirect topic kinda asking her on how she feels about that kind of stuff.