By giving a discount on service render or purchase made with BTC.
Comparing with Fiat payment, little discount may be giving to any product or service render that will be paid with BTC. Just 1% discount can make some customers change their mind from Fiat payment to BTC.
Why? Not necessary. If someone is capable of giving discounts, they can go for it, but it is not needed because we do not need to force bitcoin adoption in a way to let people make less profit or no profit, bitcoin is attracting the people even without anything like discounts. Not everyone can be able to give discounts.
Accepting to pay part or all of the transaction charges especially if products purchased comes with good profit.
BTC transaction charges most times may scare customers away from paying with BTC. If service rendered or goods purchased come with good profit, one may decide to pay the transaction charges in other to encourage his/her customers to make payment in BTC.
Why? Not necessary.
Giving incentives to customers for service render or products purchased with BTC especially if good profit are made from the service render or products purchased.
Little incentives like BTC customized biro, books, handband etc can do alot to attract customers. Remember this customized items can attract them to pay in BTC at the same time help to publicize BTC more in your community.
Why? Not also necessary.
CONCLUSION
BTC is a coin worth holding for the future. Creating a means to accumulate it is more than sacrificing for the betterment of ones future. Although the above sacrifice may not look easy now but will definitely pay in multiple folds in future.
Yes bitcoin is worth holding for future but that does not means you should not please yourself because bitcoin does not need all these things that you mentioned before there will be adoption. Remember that bitcoin still increase in marketcap even when people do not know about it like this time.