I was reading an interview with P'Aew, the director of GRGR, and P'Aew said that some of the sweet scenes were improvised -- they were all done on the spot, beyond the script. 555 P'Aew also mentioned that Nadech would ask for double takes on the kiss scenes and he would add in more kisses than the script called for, just because he was "so into the emotions of his character"...more like he wanted Yaya...
Interview (credit to yadech.com)
Q: You said a while ago that some scenes Nadech and Yaya act it out on their own, create it on their own. So, do you mean you didn't direct some scenes?
A: It's not like I don't direct it but I just brief them on the scenes and just check blocking and look at the picture; so some scenes I just let them go on solo. The scenes that Charles came to watch Fahlada at the hospital before he leave, when he was about to walk out, he has this feeling that he's going to lose Fahlada again, so he turns around to hug and kiss her like he was concern and mourning. This scene, Nadech did it on his own. He interpreted the role on his own and he act it out to how he understood it.
Also the scene at Amphawa where he was carrying Yaya and threw her in the water. It gives this feeling that he loves her so he wants to tease, hug and kiss her like he wants to eats the one he love. All these Nadech does it all on his own
Q:A lot of people said these two act too real. So real that it doesnt look like a lakorn but that they are watching a lover hitting on each other.
A:I'm the director and I still got carried away. Sometimes, the crew would come whisper to me, aren't you going to yell cut? I told them, not yet. I want to see how these two are going to continue to act when the dialogue is over and I didn't yell cut. They could do it all na. It's all improvise so it gives out a different feeling and sometimes I got carried away watching.
's too cute. They act out too cute. Both really depend on each other. I really believe they love each other. <---*note: even P'Aew believes that they really love each other! what type of love is the question...
Q:It seems like this one Nadech is sneakily requesting for 2 everytime. He is told to do one kiss but then he willl always do another one, even sometimes to the point of doing a sniff kiss. Do you think Nadech went overboard with his love scenes and take advantage of Yaya?
A:Nadech would ask Yaya, can I do this and that? However, there are times when the emotion just take him there. Like scenes to make Yaya blush or make her shock, Nadech would have to sneakily do it. The first kiss, Yaya would know but after that Yaya doesn't so she would blush.
Some scenes, I just let them play themselves because I got the live version. The scene where they hold each other's hands and do the promise, when they let the hand go and I yell cut, Yaya and Nadech think that the camera is off, both of them would blush offscreen, it's so natural. When both are shy there is something sparkling in their eyes, so I would tell the cameraman to film to keep it. Because, it's realer than real.
Did Nadech act over the limit or take advantage of Yaya? I never tell or counted how many kisses they do whether it's 1, 2, 3, 4, or 5 or how many it is, I only want the real deal. If the acting is real I take it. Nadech improvise it himself, I like it because it's real.
too cute! 
