LOL, I usually wave my hand around or tap the person. My son does that when he wants my attention too.
Stomping on the grounds. I do that at my husband's home because his house is raised on a platform so you can stomp ANYWHERE in the house and he will know that I want his attention in another room.
The worst thing you can do is to throw a pen or a ball of paper... SO stupid and embarassed. [After getting hit by a pen] "WHAT THE FUCK...[hearing people gasped at the fact that a Deaf person can swear so CLEARLY] oh, what do you want, you little... *mumbling*?"
[edited: You also can wave your hands. One student in eighth grade was SO impressed by my ability to see her waving her hands out of corners of my eyes even though she was like in back of the classroom while I was all way up front... and she kept doing it over and over yet she got nothing to say to me whenever I signed to her: "What do you want?" Her: "You can SEE me waving to you?! Wow..." Oy. Eventually I ignored her waving her hands and the teacher caught her and told her to quit fooling around. Embarassed herself...!]