To vote, click on the "tick" icon, or double-click anywhere on the note. A popup window appears, with the text of the note, and radiobuttons for you to choose an answer. Make your choice and press OK. Alternatively, select the note and click the "tick" icon in the toolbar: During a poll, you can change your vote as many times as you like (until the poll closes), but your vote is only counted once.If the poll is set close "as soon as everyone in the space has voted", you may not have an opportuntity to change your vote if everyone else has already voted!