I enjoy discussing photography and gear when the opportunity arises. During a vacation to the Grand Canyon, Zion and Bryce National Parks last summer, I ran into quite a few serious landscape photographers, many from Europe or Asia. I had a number of very pleasant discussions about photography techniques, locations and equipment in all three parks.
Closer to home comments are typically "nice camera", "that sure is a big lens", "I bet that equipment get heavy" etc. I normally give a quick reply unless they seem to be really interested.
Last month I ran into a woman carrying a 5D3 with a 200 2.0L lens at a junior high golf match. I had my 6D with 135L mounted. I started a conversation about photography and types of shots she was taking. Turns out she really didn't know much about photography beyond using the "green square" (dummy) mode and firing away. She said she just took lots of pictures of everything and sorted out the good ones. I ask if she shot RAW or JPEG and she had never heard of either and didn't care.
She said her husband had bought her the camera and several "big" lenses for Christmas, but she didn't like the weight and size - and was often disappointed by the pictures. She probably would have been far happier with a good quality P&S camera. I gave her my name and phone number in case she ever wanted to liquidate her heavy equipment for something lighter...