Hello and I hope some of you lovely people out there could help me out and read my situation thank you.
Here it goes... I moved to my new area about 1 1/2 years ago and have 2 dogs and have been going to this park regular now for about 1 year anyhow there is this woman who also has 2 dogs and walks them in the park I only see her 2-3 times a week roughly and every time we see eachother we always walk around the park together (this is how we first met).
Now my situation is - the other day she was telling me her friend who she used to go for meals with she has had an arguement with and now she needs a bit of romance in her life and I said 'are you single' and she replied 'yes' now she was wearing a top I could clearly see a good part of her boobs and all her cleverage and she knew this for example when time to put the dogs leads on she did it right infront of me I could see a whole down view of them.
She only lives around the corner to me and is unemployed at the moment so I know she is home alone alot of the time and prefers nights in she has told me so.
She always tells me how lovely I am and has asked about my ex's and if I'm in a relationship now - is this just being friendly or is it showing interest?
She is one absolute stunning 50 year old who I would love to be a friend with benefits but I am rather shy young lad and dunno whether she is being just friendly talking in the park or would like to have some fun.
Also when she was speaking to me she had her hands in her mouth biting her nails - does this mean anything?
What should I do next? I would love to regularly ride her...

Please tell me your thoughts and what I should do next.