Hi @samar1,

There are two ways to participate in the UPVU service.

1 . Delegate SP
If you delegate SP to @upvu, there are two benefits.
At first, if you posts, @upvu will upvote the post once a day.
Another is you will receive STEEM or UPVU (Steem Engin Token).

2 . Transfer STEEM
If you transfer STEEM to @upvu, you will receive UPVU from @upvu in a few minutes. 1 STEEM = 1 UPVU

3 . How to exchange UPVU for STEEM
Just transfer UPVU to @upvu. You will receive STEEM after Min 1 week, Max 4 weeks.

Thanks.