Try dry laying a few to see what spacing works best, the size variation between tiles and the out-of-squareness will dictate this (maybe 5 to 6 mm?? -they look a bit skew-whiff). Even though they are small tiles I'd go with an 8mm trowel and use a small piece of wood as a beating block - to gently tap the tiles once bedded so as to minimize lippage.
I've nearly finished the whole tiles and I am very pleased. I have the cutting to do now for the edges. For the cut tiles can I put adhesive onto cut tiles rather than on the floor. Might make it easier for me.
Cheers.