Expressing appreciation in ways they understand lets your teammates know you care. Appreciation is constantly expressed amongst members of effective teams. Letting fellow members know they're appreciated is a daily occurrence. Team members need to know that they're valued . Appreciation must be sincere.
Insincere praise feels artificial and destroys trust.
We all have built-in insincerity detectors, and even if our need to be acknowledged causes us to ignore our inner warnings, eventually we will listen to them. Appreciation on the job must be free of sexual intent. What one person sees as flattery another may perceive as sexual harassment. If you tell Fred he has a nice body, he may be thrilled by the compliment. Those who have been sexually abused may find sexual connotations in innocent remarks and situations.