Affiliate since: 02/19/2018, Power Rank: 99999999 | Read Sanda Florentina's 211 other Ask SC answers

There is never a best way, because you cannot guess the mood in which you find that group at a certain moment...
I think you should just try periodically talk with as many of that group and explain them how serious this SFI to obtain the desired results.
However, talking is not all the time possible and it depends also where that group is.
So, posting online is very interesting if the group is far away. You should change the post type from time to time, so that it does not bother the group.
Also, even if the group is in your area, time is very precious and then, anonimous advertising like small visiting cards in different places (hotels, libraries, taxis etc) are very welcome.
However, you have to make some time for yourself to do all these, too.
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There is never a best way, because you cannot guess the mood in which you find that group at a certain moment...
I think you should just try periodically talk with as many of that group and explain them how serious this SFI to obtain the desired results.
However, talking is not all the time possible and it depends also where that group is.
So, posting online is very interesting if the group is far away. You should change the post type from time to time, so that it does not bother
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