The third lip diphthong is OY as in “voice” which is made by combining AW as in door and I as in sit:
I often refer to this as the classic English greeting when abroad: “OY! Can I get chips with this?!”
This is fairly straightforward but again, when this sound is followed by an “L” it can develop an extra neutral vowel after it - so “boil” can become “boy-ul”. Try to make the “L” as lightly as possible.