Put the acrylic paint into a squeeze bottle. Slowly squeeze out a drop of paint for each dot you want to make. This will create more of a raised dot effect and will take longer to dry. If you want a wider dot, squeeze the paint slowly out onto your work surface until the dot is wide enough.
Use a round paintbrush, in a pointed style and dip it into the acrylic paint. Take the paint brush and touch it, as straight as you can to the medium. Pull the brush away quickly to create a dot on the canvas. For small dots, use a smaller round, pointed paintbrush.
Dip a cotton swab into the acrylic paint. Push the cotton swab onto the painting medium to create dots. Replace your cotton swab often because the fibers may stray from the tip and end up on your painting.