NSV - Someone noticed for the first time!

My colleague, who I haven't seen in a couple of weeks, said to me today that she could see that I'd lost some weight!

I've been on this since 2nd June and so far I've lost 24lbs in total. I've still got 3 and a bit stone to go until I'm at my first goal which is just into the healthy BMI range for my height. I don't feel like I can see a difference yet, even though some of my clothes are starting to feel a little looser, so hearing this today was really validating.

When did people start noticing a difference in you all?