How do I upvote on Reddit?

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Tags

1. #minus
2. #logged
3. #change
4. #determine
5. #their
6. #score
7. #upvotes
8. #between
9. #after
10. #arrows
11. #downvotes
12. #appearing
13. #number
14. #submission
15. #reddit
16. #items
17. #upvote
18. #downvote