Giving some buffs?

Not everyone wants’ to be buffed and certainly not randomly (but many do!). Before buffing for the first time, it is polite to ask. Buffs should be offered (and asked for) in chat unless you know that your buffs will be welcome.

After some buffs?

It’s easier to get people to buff you if you supply a buff list which goes through building types sector by sector. It’s worth spending a time putting together a good list in word so you can copy and paste it. Making one up as you go along will be irritating to the person who is on your island waiting for you to decide!
It’s easier to buff if buildings are grouped together. Consider spending some time and resource to move building types around to group them and make it easier… Your island may look a bit nicer if you do this. The sooner you do it, the cheaper it will be – every upgrade increases the cost.

Need a lot of buffs?

It may be easier to get buffs if you split your list and ask 2 people to do half each… Or look for someone who also has a lot to be buffed and come to a swapping arrangement.
I recommend that you have your buff list saved somewhere and copy and paste it to whisper when you’ve sent the buffs over.
Group it into sections. For example my general 75 buff list if I’m doing adventures reads:
S2/S5 Border – 18 Farms
S4 – 7 bronze weaponsmiths
S6 – 13 copper smelters
S3 – 15 Farms, Carpenter, Wheelmaker, Titanium Smelter
S8 – 2 exotic sawmills
S9 – 9 bakeries, 1 gold tower, 5 Farms
GROUP YOUR BUILDINGS TOGETHER before you get them to level 4 (before 3 if possible) it makes buffing and finding everything easy. We’ll help with the cost of moving them if you do it early enough and need the help.
Split it into sectors and make it easily readable and hopefully easy to find.
Or find a buff buddy in the guild. Send them your buff list, they send you theirs. You buff each other and life becomes easy. For a while several of us could buff Norfik’s island without him even being online because we knew what he would ask for.
Also it’s not worth buffing certain buildings. For example fish are needed to make buffs. If the fisherman isn’t high enough level you’ll actually cost yourself fish.