Use clean, sharp scissors or pruning shears
Cut just above a pair of leaves or a leaf node
Remove the top 1/3 of the stem
Cut multiple stems, not just one
Avoid cutting below the lowest set of leaves
Pinch off flower buds as soon as they appear
Harvest regularly to encourage bushier growth
Cut in the morning for best flavor
Leave enough leaves on the plant for regrowth
Trim no more than half the plant at one time