If you post regularly (1 to 7 posts a week might be good) you will receive an upvote wich will be woth about (but it always changes) $0.02 per share and per week. Since you have 11 shares now it should be $0.22 a week. You can double it if you upvote 28 post of steembasicincome a month with 100%. So it could be $0.44 a week.