For whatever reason, the only recumbent I tend to encounter regularly is reluctant to move from the middle of the MUP when we overtake one another. with his panniers and other gear, he's pretty wide and cause me a little concern as to whether there will be room to pass. He doesn't get a smile.

I tend to look a little askance at people who cannot or will not ride or drive courteously.

Another 'bent rides his bike with skill and occasionally sports a Marine corps jersey. He gets a smile and an "Oohrah" from me.