Usage: UMODE <+|-><modes>
Usage: MODE <nick> <+|-><modes>

Sets modes on yourself, you can use the UMODE command only for the nickname you are using at the time. Administrators can set modes on users by using MODE with the target nickname. Available user/oper modes:

a/A - Adminstrator, b - Chatops, c - Clients, d - DCC protection, e - DCC block, f - Flood notices,
G - Global notices, g - Globops, h - Helpops, I - Invite block, i - Invisible, j - Java client,
k - Kill notices, L - Language filter, m - Message block, n - Newsflash, o - Operator, p - CTCP block,
q - Quiet, r - Registered, s - Server notices, t - Reports, w - Wallops, X - Dehash host,
x - Hash host, y - Whois notices, z - Services Agent
Exceptions for +m: B - Buddy, C - Channel, J - Java user, M - Registered users on channel, R - Registered users, W - Watch list

For more information type /hs umode <mode> Examples:
/hs umode m /hs umode p