Remind youself of who you are now. Say your name.
Say your age.
Say where you are right now.
Say what you have done today.
Say what you will do next.
("My name is ____, I am ___ years old. I'm in my kitchen, in my house, in Dunoon. I woke up today and brushed my teeth and watched tv. I'm going to walk the dog this afternoon. And then I'm going to make dinner. I'm going to make...")
Splash some water on your face and notice how it feels. Notice how the towel feels as you dry your face. Think of all of the words you can to describe how the water and towel feel on your face.
Hold a cold bottle of water in your hands and feel the coldness, and the condensation on the outside.
If you wake up in the night, remind yourself of who you are and where you are. Tell yourself these things. what year is it? How old are you? Look around the room and notice familiar things - name them. Notice any sounds. Notice how your bed feels.
If you are with people you feeling comfortable with, concentrate closely on what they are saying and doing. Remind yourself why you're with them.
If you are sitting, feel the chair under you and the weight of your body and legs pressing down onto it. Notice the pressure of the chair, or floor, or table against your body and limbs.
Use your five senses.
Notice 5 things you can see,
4 things you can hear,
3 things you can touch/feel,
2 things you can smell,
1 thing you can taste.
Stamp your feet - notice the sound and sensation as you connect with the ground.
Clap your hands and rub them together. Hear the noise and fgeel the sensation in your hands and arms.