It is not enough to distribute BTC in order to attract attention ; what you can do is to create google spreadshit where you will record BTC and Qtum tokens for all participants .The team can decide about the percentage ratio.
I guess you meant they should do a giveaway?
Or a giveaway only for people in the signature campaign?
Altcoin giveaways may be abused and are forbidden in the forum, but for people in signature campaign might be good, or give the option to receive payment in Qtum instead of Bitcoin