Can you message someone on twitter ?

[Amy]

How? Without everyone else seeing

[Kelsey D]

Its called a DM (direct message), kinda shiity but eh its private just between you too.

[Becki]

you have to both be following each other, in which case there will be an option saying 'private message' on their profile

[Emily]

Yes it's called Direct Message or DM
Click on their name and on their profile click the envelope icon or on old twitter click the wheel. Choose send __a message. Type your msg then click send.
Only if someone is following u can u send a msg though