One thing I have noticed when dressed and non-dressed is the woman-to-woman compliment on clothes, accessories, hair, etc. With that you should be ready for the compliment which in guy mode this never happens.
A few situations from my own experiences.
1. I was traveling by myself en femme and checking into hotel. The hotel clerk checking me in complimented me on my dress. I had noticed her blue hair, which I really liked. It felt nice to hear her compliment and I was happy that my reply was sincere.
2. I was getting my haircut ..my stylist knows about me and I was wearing tight jeans and fashion sneakers. She said that she loved my shoes. I replied that I found them on Walmart webisite for only $15 but they were super uncomfortable. We then talked about fashion over comfort at certain times. Felt good to have this girl talk.
3. At work my colleague who I work with most .. does NOT know about Jay.. and she was wearing a really cool necklace. I said I liked it and asked if it was from the southwest. She told me the story but I was thinking that is not something a guy asks a coworker. But she did Not think anything about it, and I did enjoy the story.
All in all. I know everyone knows I am a guy when dressed, but still be ready for the compliments and try to return it.