What does it mean when a guy kisses you on the head while holding you?

its basically a no strings attached thing...we both agreed to no relationship...it was our first night being intimate together, and after he held me and kissed me on top of the head. I'm pretty new to the nsa thing and was also wondering if this is normal behavior for this kind of thing...he also held me the whole night pretty much and let me sleep over... the next time we were together i asked for a shirt to borrow b/c it was cold outside and he put it in the dryer for a little bit to warm it up for me...is this behavior normal for a nsa thing and what does a kiss on the back of the head mean? Thanks!