I tried to offer my services for many things in return, not just get them here for nothing. I may have been over exaggerating for effect.
My friends are great, but I am sort of the "Mom" figure for a lot of them (actually they all call me "The Fairy Godmother of Bluegrass") - I pick them up at the airport, I let them record my songs, play on records, cook them meals, drive them to grocery stores, watch their dogs while they are off on tour...
I tried - when building my coop - to have one friend help me in exchange for me helping him paint his apartment, he did not come, I went to his house painting party last Weds. I was the only one there.
Another friend I asked if he would help in exchange for me teaching him to brew beer, he did not come, I went to his house 3 weeks ago and helped him make a barrel of porter.
The other friend I asked if he wanted to come help - and also did not show up - stayed here at my house for 2 months while he looked for a place in town...
I could go on, but I think you get the point. I have no problem being the one who gives. They give back to me other ways... Well, not really, but they are fun anyhow.
I also was offering a huge meal (which none of them have ever refused), and a good time after the day was over. (Bonfire and playing music until 3 a.m. Many people showed up for the meal, music & bonfire.)
Did I mention this was a coop I built from a kit? I mostly just wanted company and for someone to hold the parts up while I screwed them together.