1. 69 position - get it from repeatedly using your mouth on him. (I got this on a different night date after I got the blowjob CG's) There may be more criteria needed to get this, I may have done a different order of things instead of using your mouth on him 3 or more times, all in one setting.
2. Playing w their balls - you get this when you get the blowjob chibis (3 &4) aka keep using your mouth down there
3 & 4. BJ - keep using your mouth down there
5. Handjob - keep using your hand down there
6. Groping his butt - keep using your hands on his butt (his legs need to be up)
7. Him licking your fingers - from what I heard, they need to be a bottom to trigger this chibi AND you need to keep licking his fingers (that way he gets the message to do the same to you)
Let me know if these help!