Chris Martin Avoids Gwyneth Paltrow Questions ... In the Nicest Way Possible

Chris Martin continues to play it coy when it comes to whether or not he and Gwyneth Paltrow are getting back together ... but man, is he super nice about it.

As TMZ first reported, Gwyneth stated in legal docs that she still lives with Martin ... which got us wondering if a reconciliation was in the works. Then earlier this week, Chris was a little vague when asked about the topic ... which got us wondering even more.

Then Thursday night at LAX, Martin straight up refused to answer any questions ... at one point he put his hand on one photog's shoulder and told him very politely he had no intention of telling him anything.

Despite the stonewalling ... Gwyneth and Chris were spotted cruising together on Vespas (with their kids) earlier Thursday.

Chris did tell our guy at LAX one thing ... despite the scene below, he's a huge "40-Year-Old Virgin" fan.