Take My Friend's Advice And Send Her My Number Over Instagram?

If You post 3 photos on instagram in a day and this girl likes all the photos would you call this a good sign? I noticed that she will go through the instagram feed for the day and like pics so its probably nothing. This Girl is a friend of a girl I use to be interested so she lives in my city. My friend thinks I should leave my number on a photo of hers and tell her to text me. He says I have nothing to lose.