Final answer:
To ensure safety and avoid accidents, it is important to avoid touching, talking, and looking away on other jumpers' T-11.
Step-by-step explanation:
On other jumpers' T-11, you should avoid touching them. Jumpers are usually very focused and any unwanted contact can disrupt their concentration and throw off their balance. It is also important to avoid talking as it may distract other jumpers and increase the risk of accidents. Finally, avoid looking away from the jumpers as you may miss important cues and signals.